Start to disassemble bank 1

7 files changed, 3130 insertions, 0 deletions

diff --git a/data/wild/fish.asm b/data/wild/fish.asm
new file mode 100644
index 00000000..de7e57a3
--- /dev/null
+++ b/data/wild/fish.asm
@@ -0,0 +1,225 @@
+FishGroups: ; 92488
+	dbwww 50 percent + 1, .Shore_Old,            .Shore_Good,            .Shore_Super
+	dbwww 50 percent + 1, .Ocean_Old,            .Ocean_Good,            .Ocean_Super
+	dbwww 50 percent + 1, .Lake_Old,             .Lake_Good,             .Lake_Super
+	dbwww 50 percent + 1, .Pond_Old,             .Pond_Good,             .Pond_Super
+	dbwww 50 percent + 1, .Dratini_Old,          .Dratini_Good,          .Dratini_Super
+	dbwww 50 percent + 1, .Qwilfish_Swarm_Old,   .Qwilfish_Swarm_Good,   .Qwilfish_Swarm_Super
+	dbwww 50 percent + 1, .Remoraid_Swarm_Old,   .Remoraid_Swarm_Good,   .Remoraid_Swarm_Super
+	dbwww 50 percent + 1, .Gyarados_Old,         .Gyarados_Good,         .Gyarados_Super
+	dbwww 50 percent + 1, .Dratini_2_Old,        .Dratini_2_Good,        .Dratini_2_Super
+	dbwww 50 percent + 1, .WhirlIslands_Old,     .WhirlIslands_Good,     .WhirlIslands_Super
+	dbwww 50 percent + 1, .Qwilfish_Old,         .Qwilfish_Good,         .Qwilfish_Super
+	dbwww 50 percent + 1, .Remoraid_Old,         .Remoraid_Good,         .Remoraid_Super
+	dbwww 50 percent + 1, .Qwilfish_NoSwarm_Old, .Qwilfish_NoSwarm_Good, .Qwilfish_NoSwarm_Super
+
+.Shore_Old: ; 924e3
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     KRABBY,     10
+.Shore_Good: ; 924ec
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     KRABBY,     20
+	db  90 percent + 1, KRABBY,     20
+	db 100 percent,     0, 0
+.Shore_Super: ; 924f8
+	db  40 percent,     KRABBY,     40
+	db  70 percent,     0, 1
+	db  90 percent + 1, KRABBY,     40
+	db 100 percent,     KINGLER,    40
+
+.Ocean_Old: ; 92504
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     TENTACOOL,  10
+.Ocean_Good: ; 9250d
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     TENTACOOL,  20
+	db  90 percent + 1, CHINCHOU,   20
+	db 100 percent,     0, 2
+.Ocean_Super: ; 92519
+	db  40 percent,     CHINCHOU,   40
+	db  70 percent,     0, 3
+	db  90 percent + 1, TENTACRUEL, 40
+	db 100 percent,     LANTURN,    40
+
+.Lake_Old: ; 92525
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     GOLDEEN,    10
+.Lake_Good: ; 9252e
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     GOLDEEN,    20
+	db  90 percent + 1, GOLDEEN,    20
+	db 100 percent,     0, 4
+.Lake_Super: ; 9253a
+	db  40 percent,     GOLDEEN,    40
+	db  70 percent,     0, 5
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     SEAKING,    40
+
+.Pond_Old: ; 92546
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     POLIWAG,    10
+.Pond_Good: ; 9254f
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     POLIWAG,    20
+	db  90 percent + 1, POLIWAG,    20
+	db 100 percent,     0, 6
+.Pond_Super: ; 9255b
+	db  40 percent,     POLIWAG,    40
+	db  70 percent,     0, 7
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     POLIWAG,    40
+
+.Dratini_Old: ; 92567
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     MAGIKARP,   10
+.Dratini_Good: ; 92570
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     MAGIKARP,   20
+	db  90 percent + 1, MAGIKARP,   20
+	db 100 percent,     0, 8
+.Dratini_Super: ; 9257c
+	db  40 percent,     MAGIKARP,   40
+	db  70 percent,     0, 9
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     DRAGONAIR,  40
+
+.Qwilfish_Swarm_Old: ; 92588
+	db  70 percent + 1, MAGIKARP,   5
+	db  85 percent + 1, MAGIKARP,   5
+	db 100 percent,     QWILFISH,   5
+.Qwilfish_Swarm_Good: ; 92591
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     QWILFISH,   20
+	db  90 percent + 1, QWILFISH,   20
+	db 100 percent,     0, 10
+.Qwilfish_Swarm_Super: ; 9259d
+	db  40 percent,     QWILFISH,   40
+	db  70 percent,     0, 11
+	db  90 percent + 1, QWILFISH,   40
+	db 100 percent,     QWILFISH,   40
+
+.Remoraid_Swarm_Old: ; 925a9
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     REMORAID,   10
+.Remoraid_Swarm_Good: ; 925b2
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     REMORAID,   20
+	db  90 percent + 1, REMORAID,   20
+	db 100 percent,     0, 12
+.Remoraid_Swarm_Super: ; 925be
+	db  40 percent,     REMORAID,   40
+	db  70 percent,     0, 13
+	db  90 percent + 1, REMORAID,   40
+	db 100 percent,     REMORAID,   40
+
+.Gyarados_Old: ; 925ca
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     MAGIKARP,   10
+.Gyarados_Good: ; 925d3
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     MAGIKARP,   20
+	db  90 percent + 1, MAGIKARP,   20
+	db 100 percent,     0, 14
+.Gyarados_Super: ; 925df
+	db  40 percent,     MAGIKARP,   40
+	db  70 percent,     0, 15
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     MAGIKARP,   40
+
+.Dratini_2_Old: ; 925eb
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     MAGIKARP,   10
+.Dratini_2_Good: ; 925f4
+	db  35 percent,     MAGIKARP,   10
+	db  70 percent,     MAGIKARP,   10
+	db  90 percent + 1, MAGIKARP,   10
+	db 100 percent,     0, 16
+.Dratini_2_Super: ; 92600
+	db  40 percent,     MAGIKARP,   10
+	db  70 percent,     0, 17
+	db  90 percent + 1, MAGIKARP,   10
+	db 100 percent,     DRAGONAIR,  10
+
+.WhirlIslands_Old: ; 9260c
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     KRABBY,     10
+.WhirlIslands_Good: ; 92615
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     KRABBY,     20
+	db  90 percent + 1, KRABBY,     20
+	db 100 percent,     0, 18
+.WhirlIslands_Super: ; 92621
+	db  40 percent,     KRABBY,     40
+	db  70 percent,     0, 19
+	db  90 percent + 1, KINGLER,    40
+	db 100 percent,     SEADRA,     40
+
+.Qwilfish_NoSwarm_Old:
+.Qwilfish_Old: ; 9262d
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     TENTACOOL,  10
+.Qwilfish_NoSwarm_Good:
+.Qwilfish_Good: ; 92636
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     TENTACOOL,  20
+	db  90 percent + 1, TENTACOOL,  20
+	db 100 percent,     0, 20
+.Qwilfish_NoSwarm_Super:
+.Qwilfish_Super: ; 92642
+	db  40 percent,     TENTACOOL,  40
+	db  70 percent,     0, 21
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     QWILFISH,   40
+
+.Remoraid_Old: ; 9264e
+	db  70 percent + 1, MAGIKARP,   10
+	db  85 percent + 1, MAGIKARP,   10
+	db 100 percent,     POLIWAG,    10
+.Remoraid_Good: ; 92657
+	db  35 percent,     MAGIKARP,   20
+	db  70 percent,     POLIWAG,    20
+	db  90 percent + 1, POLIWAG,    20
+	db 100 percent,     0, 6
+.Remoraid_Super: ; 92663
+	db  40 percent,     POLIWAG,    40
+	db  70 percent,     0, 7
+	db  90 percent + 1, MAGIKARP,   40
+	db 100 percent,     REMORAID,   40
+; 9266f
+
+
+TimeFishGroups: ; 9266f
+	;  day              nite
+	db CORSOLA,    20,  STARYU,     20
+	db CORSOLA,    40,  STARYU,     40
+	db SHELLDER,   20,  SHELLDER,   20
+	db SHELLDER,   40,  SHELLDER,   40
+	db GOLDEEN,    20,  GOLDEEN,    20
+	db GOLDEEN,    40,  GOLDEEN,    40
+	db POLIWAG,    20,  POLIWAG,    20
+	db POLIWAG,    40,  POLIWAG,    40
+	db DRATINI,    20,  DRATINI,    20
+	db DRATINI,    40,  DRATINI,    40
+	db QWILFISH,   20,  QWILFISH,   20
+	db QWILFISH,   40,  QWILFISH,   40
+	db REMORAID,   20,  REMORAID,   20
+	db REMORAID,   40,  REMORAID,   40
+	db GYARADOS,   20,  GYARADOS,   20
+	db GYARADOS,   40,  GYARADOS,   40
+	db DRATINI,    10,  DRATINI,    10
+	db DRATINI,    10,  DRATINI,    10
+	db HORSEA,     20,  HORSEA,     20
+	db HORSEA,     40,  HORSEA,     40
+	db TENTACOOL,  20,  TENTACOOL,  20
+	db TENTACOOL,  40,  TENTACOOL,  40
+; 926c7
diff --git a/data/wild/johto_grass.asm b/data/wild/johto_grass.asm
new file mode 100644
index 00000000..f241dd5d
--- /dev/null
+++ b/data/wild/johto_grass.asm
@@ -0,0 +1,1650 @@
+; Johto Pokémon in grass
+
+	map SPROUT_TOWER_2F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, RATTATA
+	db 4, RATTATA
+	db 5, RATTATA
+	db 3, RATTATA
+	db 6, RATTATA
+	db 5, RATTATA
+	db 5, RATTATA
+	; day
+	db 3, RATTATA
+	db 4, RATTATA
+	db 5, RATTATA
+	db 3, RATTATA
+	db 6, RATTATA
+	db 5, RATTATA
+	db 5, RATTATA
+	; nite
+	db 3, GASTLY
+	db 4, GASTLY
+	db 5, GASTLY
+	db 3, RATTATA
+	db 6, GASTLY
+	db 5, RATTATA
+	db 5, RATTATA
+
+	map SPROUT_TOWER_3F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, RATTATA
+	db 4, RATTATA
+	db 5, RATTATA
+	db 3, RATTATA
+	db 6, RATTATA
+	db 5, RATTATA
+	db 5, RATTATA
+	; day
+	db 3, RATTATA
+	db 4, RATTATA
+	db 5, RATTATA
+	db 3, RATTATA
+	db 6, RATTATA
+	db 5, RATTATA
+	db 5, RATTATA
+	; nite
+	db 3, GASTLY
+	db 4, GASTLY
+	db 5, GASTLY
+	db 3, RATTATA
+	db 6, GASTLY
+	db 5, RATTATA
+	db 5, RATTATA
+
+	map TIN_TOWER_2F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_3F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_4F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_5F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_6F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_7F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_8F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map TIN_TOWER_9F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; day
+	db 20, RATTATA
+	db 21, RATTATA
+	db 22, RATTATA
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+	; nite
+	db 20, GASTLY
+	db 21, GASTLY
+	db 22, GASTLY
+	db 22, RATTATA
+	db 23, RATTATA
+	db 24, RATTATA
+	db 24, RATTATA
+
+	map BURNED_TOWER_1F
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, RATTATA
+	db 14, KOFFING
+	db 15, RATTATA
+	db 14, ZUBAT
+	db 15, RATTATA
+	db 15, RATICATE
+	db 15, RATICATE
+	; day
+	db 13, RATTATA
+	db 14, KOFFING
+	db 15, RATTATA
+	db 14, ZUBAT
+	db 15, RATTATA
+	db 15, RATICATE
+	db 15, RATICATE
+	; nite
+	db 13, RATTATA
+	db 14, KOFFING
+	db 15, RATTATA
+	db 14, ZUBAT
+	db 15, RATTATA
+	db 15, RATICATE
+	db 15, RATICATE
+
+	map BURNED_TOWER_B1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 14, RATTATA
+	db 14, KOFFING
+	db 16, KOFFING
+	db 15, ZUBAT
+	db 12, KOFFING
+	db 16, KOFFING
+	db 16, WEEZING
+	; day
+	db 14, RATTATA
+	db 14, KOFFING
+	db 16, KOFFING
+	db 15, ZUBAT
+	db 12, KOFFING
+	db 16, KOFFING
+	db 16, WEEZING
+	; nite
+	db 14, RATTATA
+	db 14, KOFFING
+	db 16, KOFFING
+	db 15, ZUBAT
+	db 12, KOFFING
+	db 16, KOFFING
+	db 16, WEEZING
+
+	map NATIONAL_PARK
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 12, NIDORAN_M
+	db 12, NIDORAN_F
+	db 14, LEDYBA
+	db 13, PIDGEY
+	db 10, CATERPIE
+	db 10, WEEDLE
+	db 10, WEEDLE
+	; day
+	db 12, NIDORAN_F
+	db 12, NIDORAN_M
+	db 14, SUNKERN
+	db 13, PIDGEY
+	db 10, CATERPIE
+	db 10, WEEDLE
+	db 10, WEEDLE
+	; nite
+	db 12, PSYDUCK
+	db 13, HOOTHOOT
+	db 14, SPINARAK
+	db 15, HOOTHOOT
+	db 10, VENONAT
+	db 12, VENONAT
+	db 12, VENONAT
+
+	map RUINS_OF_ALPH_OUTSIDE
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 20, NATU
+	db 22, NATU
+	db 18, NATU
+	db 24, NATU
+	db 20, SMEARGLE
+	db 22, SMEARGLE
+	db 22, SMEARGLE
+	; day
+	db 20, NATU
+	db 22, NATU
+	db 18, NATU
+	db 24, NATU
+	db 20, SMEARGLE
+	db 22, SMEARGLE
+	db 22, SMEARGLE
+	; nite
+	db 20, NATU
+	db 22, NATU
+	db 18, NATU
+	db 24, NATU
+	db 22, WOOPER
+	db 22, QUAGSIRE
+	db 22, QUAGSIRE
+
+	map RUINS_OF_ALPH_INNER_CHAMBER
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	; day
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	; nite
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+	db 5, UNOWN
+
+	map UNION_CAVE_1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 6, GEODUDE
+	db 6, SANDSHREW
+	db 5, ZUBAT
+	db 4, RATTATA
+	db 7, ZUBAT
+	db 6, ONIX
+	db 6, ONIX
+	; day
+	db 6, GEODUDE
+	db 6, SANDSHREW
+	db 5, ZUBAT
+	db 4, RATTATA
+	db 7, ZUBAT
+	db 6, ONIX
+	db 6, ONIX
+	; nite
+	db 6, GEODUDE
+	db 6, RATTATA
+	db 5, WOOPER
+	db 4, RATTATA
+	db 7, ZUBAT
+	db 6, ONIX
+	db 6, ONIX
+
+	map UNION_CAVE_B1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 8, GEODUDE
+	db 6, ZUBAT
+	db 8, ZUBAT
+	db 8, ONIX
+	db 6, RATTATA
+	db 8, RATTATA
+	db 8, RATTATA
+	; day
+	db 8, GEODUDE
+	db 6, ZUBAT
+	db 8, ZUBAT
+	db 8, ONIX
+	db 6, RATTATA
+	db 8, RATTATA
+	db 8, RATTATA
+	; nite
+	db 8, GEODUDE
+	db 6, ZUBAT
+	db 8, WOOPER
+	db 8, ONIX
+	db 6, RATTATA
+	db 8, RATTATA
+	db 8, RATTATA
+
+	map UNION_CAVE_B2F
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 22, ZUBAT
+	db 21, RATICATE
+	db 20, GEODUDE
+	db 23, ONIX
+	db 23, ONIX
+	; day
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 22, ZUBAT
+	db 21, RATICATE
+	db 20, GEODUDE
+	db 23, ONIX
+	db 23, ONIX
+	; nite
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 22, QUAGSIRE
+	db 21, RATICATE
+	db 20, GEODUDE
+	db 23, ONIX
+	db 23, ONIX
+
+	map SLOWPOKE_WELL_B1F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 5, ZUBAT
+	db 6, ZUBAT
+	db 7, ZUBAT
+	db 6, SLOWPOKE
+	db 8, ZUBAT
+	db 8, SLOWPOKE
+	db 8, SLOWPOKE
+	; day
+	db 5, ZUBAT
+	db 6, ZUBAT
+	db 7, ZUBAT
+	db 6, SLOWPOKE
+	db 8, ZUBAT
+	db 8, SLOWPOKE
+	db 8, SLOWPOKE
+	; nite
+	db 5, ZUBAT
+	db 6, ZUBAT
+	db 7, ZUBAT
+	db 6, SLOWPOKE
+	db 8, ZUBAT
+	db 8, SLOWPOKE
+	db 8, SLOWPOKE
+
+	map SLOWPOKE_WELL_B2F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 21, ZUBAT
+	db 23, ZUBAT
+	db 19, ZUBAT
+	db 21, SLOWPOKE
+	db 23, GOLBAT
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+	; day
+	db 21, ZUBAT
+	db 23, ZUBAT
+	db 19, ZUBAT
+	db 21, SLOWPOKE
+	db 23, GOLBAT
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+	; nite
+	db 21, ZUBAT
+	db 23, ZUBAT
+	db 19, ZUBAT
+	db 21, SLOWPOKE
+	db 23, GOLBAT
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+
+	map ILEX_FOREST
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 5, CATERPIE
+	db 5, WEEDLE
+	db 7, METAPOD
+	db 7, KAKUNA
+	db 7, PIDGEY
+	db 6, PARAS
+	db 6, PARAS
+	; day
+	db 5, CATERPIE
+	db 5, WEEDLE
+	db 7, METAPOD
+	db 7, KAKUNA
+	db 7, PIDGEY
+	db 6, PARAS
+	db 6, PARAS
+	; nite
+	db 5, ODDISH
+	db 5, VENONAT
+	db 7, ODDISH
+	db 7, PSYDUCK
+	db 7, HOOTHOOT
+	db 6, PARAS
+	db 6, PARAS
+
+	map MOUNT_MORTAR_1F_OUTSIDE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 14, RATTATA
+	db 13, ZUBAT
+	db 14, MACHOP
+	db 13, GOLBAT
+	db 14, GEODUDE
+	db 16, RATICATE
+	db 16, RATICATE
+	; day
+	db 14, RATTATA
+	db 13, ZUBAT
+	db 14, MACHOP
+	db 13, GOLBAT
+	db 14, GEODUDE
+	db 16, RATICATE
+	db 16, RATICATE
+	; nite
+	db 14, RATTATA
+	db 13, ZUBAT
+	db 14, MARILL
+	db 13, GOLBAT
+	db 14, GEODUDE
+	db 16, RATICATE
+	db 16, RATICATE
+
+	map MOUNT_MORTAR_1F_INSIDE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, GEODUDE
+	db 14, RATTATA
+	db 15, MACHOP
+	db 14, RATICATE
+	db 15, ZUBAT
+	db 15, GOLBAT
+	db 15, GOLBAT
+	; day
+	db 13, GEODUDE
+	db 14, RATTATA
+	db 15, MACHOP
+	db 14, RATICATE
+	db 15, ZUBAT
+	db 15, GOLBAT
+	db 15, GOLBAT
+	; nite
+	db 13, GEODUDE
+	db 14, RATTATA
+	db 15, RATICATE
+	db 14, ZUBAT
+	db 15, MARILL
+	db 15, GOLBAT
+	db 15, GOLBAT
+
+	map MOUNT_MORTAR_2F_INSIDE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 31, GRAVELER
+	db 32, MACHOKE
+	db 31, GEODUDE
+	db 30, RATICATE
+	db 28, MACHOP
+	db 30, GOLBAT
+	db 30, GOLBAT
+	; day
+	db 31, GRAVELER
+	db 32, MACHOKE
+	db 31, GEODUDE
+	db 30, RATICATE
+	db 28, MACHOP
+	db 30, GOLBAT
+	db 30, GOLBAT
+	; nite
+	db 31, GRAVELER
+	db 31, GEODUDE
+	db 30, RATICATE
+	db 30, GOLBAT
+	db 28, MARILL
+	db 32, GOLBAT
+	db 32, GOLBAT
+
+	map MOUNT_MORTAR_B1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 15, ZUBAT
+	db 17, ZUBAT
+	db 17, GOLBAT
+	db 16, MACHOP
+	db 16, GEODUDE
+	db 18, RATICATE
+	db 18, RATICATE
+	; day
+	db 15, ZUBAT
+	db 17, ZUBAT
+	db 17, GOLBAT
+	db 16, MACHOP
+	db 16, GEODUDE
+	db 18, RATICATE
+	db 18, RATICATE
+	; nite
+	db 15, ZUBAT
+	db 17, ZUBAT
+	db 17, GOLBAT
+	db 16, MARILL
+	db 16, GEODUDE
+	db 18, RATICATE
+	db 18, RATICATE
+
+	map ICE_PATH_1F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 21, SWINUB
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 23, SWINUB
+	db 24, GOLBAT
+	db 22, GOLBAT
+	db 22, GOLBAT
+	; day
+	db 21, SWINUB
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 23, SWINUB
+	db 24, GOLBAT
+	db 22, GOLBAT
+	db 22, GOLBAT
+	; nite
+	db 21, DELIBIRD
+	db 22, ZUBAT
+	db 22, GOLBAT
+	db 23, DELIBIRD
+	db 24, GOLBAT
+	db 22, GOLBAT
+	db 22, GOLBAT
+
+	map ICE_PATH_B1F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, SWINUB
+	db 23, ZUBAT
+	db 23, GOLBAT
+	db 24, SWINUB
+	db 25, GOLBAT
+	db 23, GOLBAT
+	db 22, JYNX
+	; day
+	db 22, SWINUB
+	db 23, ZUBAT
+	db 23, GOLBAT
+	db 24, SWINUB
+	db 25, GOLBAT
+	db 23, GOLBAT
+	db 22, JYNX
+	; nite
+	db 22, DELIBIRD
+	db 23, ZUBAT
+	db 23, GOLBAT
+	db 24, DELIBIRD
+	db 25, GOLBAT
+	db 23, GOLBAT
+	db 22, SNEASEL
+
+	map ICE_PATH_B2F_MAHOGANY_SIDE
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, SWINUB
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, SWINUB
+	db 26, GOLBAT
+	db 22, JYNX
+	db 24, JYNX
+	; day
+	db 23, SWINUB
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, SWINUB
+	db 26, GOLBAT
+	db 22, JYNX
+	db 24, JYNX
+	; nite
+	db 23, DELIBIRD
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, DELIBIRD
+	db 26, GOLBAT
+	db 22, SNEASEL
+	db 24, SNEASEL
+
+	map ICE_PATH_B2F_BLACKTHORN_SIDE
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, SWINUB
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, SWINUB
+	db 26, GOLBAT
+	db 22, JYNX
+	db 24, JYNX
+	; day
+	db 23, SWINUB
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, SWINUB
+	db 26, GOLBAT
+	db 22, JYNX
+	db 24, JYNX
+	; nite
+	db 23, DELIBIRD
+	db 24, ZUBAT
+	db 24, GOLBAT
+	db 25, DELIBIRD
+	db 26, GOLBAT
+	db 22, SNEASEL
+	db 24, SNEASEL
+
+	map ICE_PATH_B3F
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 24, SWINUB
+	db 25, ZUBAT
+	db 25, GOLBAT
+	db 26, SWINUB
+	db 22, JYNX
+	db 24, JYNX
+	db 26, JYNX
+	; day
+	db 24, SWINUB
+	db 25, ZUBAT
+	db 25, GOLBAT
+	db 26, SWINUB
+	db 22, JYNX
+	db 24, JYNX
+	db 26, JYNX
+	; nite
+	db 24, DELIBIRD
+	db 25, ZUBAT
+	db 25, GOLBAT
+	db 26, DELIBIRD
+	db 22, SNEASEL
+	db 24, SNEASEL
+	db 26, SNEASEL
+
+	map WHIRL_ISLAND_NW
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; day
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; nite
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, KRABBY
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, GOLBAT
+	db 24, GOLBAT
+
+	map WHIRL_ISLAND_NE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; day
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; nite
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, KRABBY
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, GOLBAT
+	db 24, GOLBAT
+
+	map WHIRL_ISLAND_SW
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; day
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; nite
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, KRABBY
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, GOLBAT
+	db 24, GOLBAT
+
+	map WHIRL_ISLAND_CAVE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; day
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; nite
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, KRABBY
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, GOLBAT
+	db 24, GOLBAT
+
+	map WHIRL_ISLAND_SE
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; day
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, SEEL
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, SEEL
+	db 24, SEEL
+	; nite
+	db 22, KRABBY
+	db 23, ZUBAT
+	db 22, KRABBY
+	db 24, KRABBY
+	db 25, GOLBAT
+	db 24, GOLBAT
+	db 24, GOLBAT
+
+	map WHIRL_ISLAND_B1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, KRABBY
+	db 24, ZUBAT
+	db 23, SEEL
+	db 25, KRABBY
+	db 26, GOLBAT
+	db 25, SEEL
+	db 25, SEEL
+	; day
+	db 23, KRABBY
+	db 24, ZUBAT
+	db 23, SEEL
+	db 25, KRABBY
+	db 26, GOLBAT
+	db 25, SEEL
+	db 25, SEEL
+	; nite
+	db 23, KRABBY
+	db 24, ZUBAT
+	db 23, KRABBY
+	db 25, KRABBY
+	db 26, GOLBAT
+	db 25, GOLBAT
+	db 25, GOLBAT
+
+	map WHIRL_ISLAND_B2F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 24, KRABBY
+	db 25, ZUBAT
+	db 24, SEEL
+	db 26, KRABBY
+	db 27, GOLBAT
+	db 26, SEEL
+	db 26, SEEL
+	; day
+	db 24, KRABBY
+	db 25, ZUBAT
+	db 24, SEEL
+	db 26, KRABBY
+	db 27, GOLBAT
+	db 26, SEEL
+	db 26, SEEL
+	; nite
+	db 24, KRABBY
+	db 25, ZUBAT
+	db 24, KRABBY
+	db 26, KRABBY
+	db 27, GOLBAT
+	db 26, GOLBAT
+	db 26, GOLBAT
+
+	map WHIRL_ISLAND_LUGIA_CHAMBER
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 25, KRABBY
+	db 26, ZUBAT
+	db 25, SEEL
+	db 27, KRABBY
+	db 28, GOLBAT
+	db 27, SEEL
+	db 27, SEEL
+	; day
+	db 25, KRABBY
+	db 26, ZUBAT
+	db 25, SEEL
+	db 27, KRABBY
+	db 28, GOLBAT
+	db 27, SEEL
+	db 27, SEEL
+	; nite
+	db 25, KRABBY
+	db 26, ZUBAT
+	db 25, KRABBY
+	db 27, KRABBY
+	db 28, GOLBAT
+	db 27, GOLBAT
+	db 27, GOLBAT
+
+	map SILVER_CAVE_ROOM_1
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 43, GRAVELER
+	db 44, URSARING
+	db 42, ONIX
+	db 45, MAGMAR
+	db 45, GOLBAT
+	db 20, LARVITAR
+	db 15, LARVITAR
+	; day
+	db 43, GRAVELER
+	db 44, URSARING
+	db 42, ONIX
+	db 45, MAGMAR
+	db 45, GOLBAT
+	db 20, LARVITAR
+	db 15, LARVITAR
+	; nite
+	db 43, GRAVELER
+	db 44, GOLBAT
+	db 42, ONIX
+	db 42, GOLBAT
+	db 45, GOLDUCK
+	db 46, GOLBAT
+	db 46, GOLBAT
+
+	map SILVER_CAVE_ROOM_2
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 48, GOLBAT
+	db 48, MACHOKE
+	db 47, URSARING
+	db 46, PARASECT
+	db 48, PARASECT
+	db 15, LARVITAR
+	db 20, LARVITAR
+	; day
+	db 48, GOLBAT
+	db 48, MACHOKE
+	db 47, URSARING
+	db 46, PARASECT
+	db 48, PARASECT
+	db 15, LARVITAR
+	db 20, LARVITAR
+	; nite
+	db 48, GOLBAT
+	db 48, GOLDUCK
+	db 46, GOLBAT
+	db 46, PARASECT
+	db 48, PARASECT
+	db 45, MISDREAVUS
+	db 45, MISDREAVUS
+
+	map SILVER_CAVE_ROOM_3
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 51, GOLBAT
+	db 48, ONIX
+	db 48, GRAVELER
+	db 50, URSARING
+	db 20, LARVITAR
+	db 15, LARVITAR
+	db 20, PUPITAR
+	; day
+	db 51, GOLBAT
+	db 48, ONIX
+	db 48, GRAVELER
+	db 50, URSARING
+	db 20, LARVITAR
+	db 15, LARVITAR
+	db 20, PUPITAR
+	; nite
+	db 51, GOLBAT
+	db 48, ONIX
+	db 48, GRAVELER
+	db 49, GOLBAT
+	db 45, GOLDUCK
+	db 53, GOLBAT
+	db 53, GOLBAT
+
+	map SILVER_CAVE_ITEM_ROOMS
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 48, GOLBAT
+	db 46, GOLBAT
+	db 50, GOLBAT
+	db 46, PARASECT
+	db 48, PARASECT
+	db 50, PARASECT
+	db 52, PARASECT
+	; day
+	db 48, GOLBAT
+	db 46, GOLBAT
+	db 50, GOLBAT
+	db 46, PARASECT
+	db 48, PARASECT
+	db 50, PARASECT
+	db 52, PARASECT
+	; nite
+	db 45, MISDREAVUS
+	db 48, GOLBAT
+	db 50, GOLBAT
+	db 46, PARASECT
+	db 48, PARASECT
+	db 50, PARASECT
+	db 52, PARASECT
+
+	map DARK_CAVE_VIOLET_ENTRANCE
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, GEODUDE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 4, GEODUDE
+	db 2, TEDDIURSA
+	db 4, ZUBAT
+	db 4, DUNSPARCE
+	; day
+	db 3, GEODUDE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 4, GEODUDE
+	db 2, ZUBAT
+	db 4, ZUBAT
+	db 4, DUNSPARCE
+	; nite
+	db 3, GEODUDE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 4, GEODUDE
+	db 2, ZUBAT
+	db 4, ZUBAT
+	db 4, DUNSPARCE
+
+	map DARK_CAVE_BLACKTHORN_ENTRANCE
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, GEODUDE
+	db 23, ZUBAT
+	db 25, GRAVELER
+	db 25, URSARING
+	db 20, TEDDIURSA
+	db 23, GOLBAT
+	db 23, GOLBAT
+	; day
+	db 23, GEODUDE
+	db 23, ZUBAT
+	db 25, GRAVELER
+	db 25, URSARING
+	db 30, URSARING
+	db 23, GOLBAT
+	db 23, GOLBAT
+	; nite
+	db 23, GEODUDE
+	db 23, ZUBAT
+	db 25, GRAVELER
+	db 20, WOBBUFFET
+	db 25, WOBBUFFET
+	db 23, GOLBAT
+	db 23, GOLBAT
+
+	map ROUTE_29
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 2, PIDGEY
+	db 2, SENTRET
+	db 3, PIDGEY
+	db 3, SENTRET
+	db 2, RATTATA
+	db 3, HOPPIP
+	db 3, HOPPIP
+	; day
+	db 2, PIDGEY
+	db 2, SENTRET
+	db 3, PIDGEY
+	db 3, SENTRET
+	db 2, RATTATA
+	db 3, HOPPIP
+	db 3, HOPPIP
+	; nite
+	db 2, HOOTHOOT
+	db 2, RATTATA
+	db 3, HOOTHOOT
+	db 3, RATTATA
+	db 2, RATTATA
+	db 3, HOOTHOOT
+	db 3, HOOTHOOT
+
+	map ROUTE_30
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, LEDYBA
+	db 3, CATERPIE
+	db 4, CATERPIE
+	db 4, PIDGEY
+	db 3, WEEDLE
+	db 4, HOPPIP
+	db 4, HOPPIP
+	; day
+	db 3, PIDGEY
+	db 3, CATERPIE
+	db 4, CATERPIE
+	db 4, PIDGEY
+	db 3, WEEDLE
+	db 4, HOPPIP
+	db 4, HOPPIP
+	; nite
+	db 3, SPINARAK
+	db 3, HOOTHOOT
+	db 4, POLIWAG
+	db 4, HOOTHOOT
+	db 3, ZUBAT
+	db 4, HOOTHOOT
+	db 4, HOOTHOOT
+
+	map ROUTE_31
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 4, LEDYBA
+	db 4, CATERPIE
+	db 5, BELLSPROUT
+	db 5, PIDGEY
+	db 4, WEEDLE
+	db 5, HOPPIP
+	db 5, HOPPIP
+	; day
+	db 4, PIDGEY
+	db 4, CATERPIE
+	db 5, BELLSPROUT
+	db 5, PIDGEY
+	db 4, WEEDLE
+	db 5, HOPPIP
+	db 5, HOPPIP
+	; nite
+	db 4, SPINARAK
+	db 4, POLIWAG
+	db 5, BELLSPROUT
+	db 5, HOOTHOOT
+	db 4, ZUBAT
+	db 5, GASTLY
+	db 5, GASTLY
+
+	map ROUTE_32
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 4, EKANS
+	db 5, RATTATA
+	db 7, BELLSPROUT
+	db 6, HOPPIP
+	db 7, PIDGEY
+	db 7, HOPPIP
+	db 7, HOPPIP
+	; day
+	db 4, EKANS
+	db 5, RATTATA
+	db 7, BELLSPROUT
+	db 6, HOPPIP
+	db 7, PIDGEY
+	db 7, HOPPIP
+	db 7, HOPPIP
+	; nite
+	db 4, WOOPER
+	db 5, RATTATA
+	db 7, BELLSPROUT
+	db 6, ZUBAT
+	db 7, HOOTHOOT
+	db 7, GASTLY
+	db 7, GASTLY
+
+	map ROUTE_33
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 6, RATTATA
+	db 6, SPEAROW
+	db 6, GEODUDE
+	db 6, HOPPIP
+	db 7, EKANS
+	db 7, HOPPIP
+	db 7, HOPPIP
+	; day
+	db 6, RATTATA
+	db 6, SPEAROW
+	db 6, GEODUDE
+	db 6, HOPPIP
+	db 7, EKANS
+	db 7, HOPPIP
+	db 7, HOPPIP
+	; nite
+	db 6, RATTATA
+	db 6, ZUBAT
+	db 6, GEODUDE
+	db 6, ZUBAT
+	db 7, RATTATA
+	db 7, RATTATA
+	db 7, RATTATA
+
+	map ROUTE_34
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 10, SNUBBULL
+	db 11, RATTATA
+	db 12, PIDGEY
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 10, DITTO
+	; day
+	db 10, SNUBBULL
+	db 11, RATTATA
+	db 12, PIDGEY
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 10, DITTO
+	; nite
+	db 12, DROWZEE
+	db 11, RATTATA
+	db 12, HOOTHOOT
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 10, DITTO
+
+	map ROUTE_35
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 12, SNUBBULL
+	db 14, PIDGEY
+	db 13, GROWLITHE
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 12, YANMA
+	; day
+	db 12, SNUBBULL
+	db 14, PIDGEY
+	db 13, GROWLITHE
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 12, YANMA
+	; nite
+	db 12, DROWZEE
+	db 14, HOOTHOOT
+	db 13, PSYDUCK
+	db 10, ABRA
+	db 12, JIGGLYPUFF
+	db 10, DITTO
+	db 12, YANMA
+
+	map ROUTE_36
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 4, LEDYBA
+	db 4, PIDGEY
+	db 5, BELLSPROUT
+	db 5, GROWLITHE
+	db 5, PIDGEY
+	db 6, PIDGEY
+	db 6, PIDGEY
+	; day
+	db 4, PIDGEY
+	db 4, PIDGEY
+	db 5, BELLSPROUT
+	db 5, GROWLITHE
+	db 5, PIDGEY
+	db 6, PIDGEY
+	db 6, PIDGEY
+	; nite
+	db 4, SPINARAK
+	db 4, HOOTHOOT
+	db 5, BELLSPROUT
+	db 5, HOOTHOOT
+	db 5, HOOTHOOT
+	db 5, GASTLY
+	db 5, GASTLY
+
+	map ROUTE_37
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, LEDYBA
+	db 14, GROWLITHE
+	db 15, PIDGEY
+	db 16, GROWLITHE
+	db 15, PIDGEOTTO
+	db 15, LEDIAN
+	db 15, LEDIAN
+	; day
+	db 13, PIDGEY
+	db 14, GROWLITHE
+	db 15, PIDGEY
+	db 16, GROWLITHE
+	db 15, PIDGEOTTO
+	db 15, PIDGEY
+	db 15, PIDGEY
+	; nite
+	db 13, SPINARAK
+	db 14, STANTLER
+	db 15, HOOTHOOT
+	db 16, STANTLER
+	db 15, NOCTOWL
+	db 15, ARIADOS
+	db 15, ARIADOS
+
+	map ROUTE_38
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 16, RATTATA
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 13, TAUROS
+	db 13, MILTANK
+	db 13, MILTANK
+	; day
+	db 16, RATTATA
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 13, TAUROS
+	db 13, MILTANK
+	db 13, MILTANK
+	; nite
+	db 16, MEOWTH
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, NOCTOWL
+	db 16, MEOWTH
+	db 16, MEOWTH
+	db 16, MEOWTH
+
+	map ROUTE_39
+	db 2 percent, 2 percent, 2 percent ; encounter rates: morn/day/nite
+	; morn
+	db 16, RATTATA
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 15, MILTANK
+	db 15, TAUROS
+	db 15, TAUROS
+	; day
+	db 16, RATTATA
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 15, MILTANK
+	db 15, TAUROS
+	db 15, TAUROS
+	; nite
+	db 16, MEOWTH
+	db 16, RATICATE
+	db 16, MAGNEMITE
+	db 16, NOCTOWL
+	db 18, MEOWTH
+	db 18, MEOWTH
+	db 18, MEOWTH
+
+	map ROUTE_42
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, EKANS
+	db 14, SPEAROW
+	db 15, RATTATA
+	db 16, RATICATE
+	db 15, ARBOK
+	db 16, FEAROW
+	db 16, FEAROW
+	; day
+	db 13, EKANS
+	db 14, SPEAROW
+	db 15, RATTATA
+	db 16, RATICATE
+	db 15, ARBOK
+	db 16, FEAROW
+	db 16, FEAROW
+	; nite
+	db 13, RATTATA
+	db 14, ZUBAT
+	db 15, RATICATE
+	db 16, GOLBAT
+	db 15, MARILL
+	db 16, GOLBAT
+	db 16, GOLBAT
+
+	map ROUTE_43
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 15, SENTRET
+	db 16, PIDGEOTTO
+	db 16, FARFETCH_D
+	db 15, FURRET
+	db 17, RATICATE
+	db 17, FURRET
+	db 17, FURRET
+	; day
+	db 15, SENTRET
+	db 16, PIDGEOTTO
+	db 16, FARFETCH_D
+	db 15, FURRET
+	db 17, RATICATE
+	db 17, FURRET
+	db 17, FURRET
+	; nite
+	db 15, VENONAT
+	db 16, NOCTOWL
+	db 16, RATICATE
+	db 17, VENONAT
+	db 17, RATICATE
+	db 17, VENOMOTH
+	db 17, VENOMOTH
+
+	map ROUTE_44
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, TANGELA
+	db 22, LICKITUNG
+	db 22, BELLSPROUT
+	db 24, WEEPINBELL
+	db 24, LICKITUNG
+	db 26, LICKITUNG
+	db 26, LICKITUNG
+	; day
+	db 23, TANGELA
+	db 22, LICKITUNG
+	db 22, BELLSPROUT
+	db 24, WEEPINBELL
+	db 24, LICKITUNG
+	db 26, LICKITUNG
+	db 26, LICKITUNG
+	; nite
+	db 23, TANGELA
+	db 22, POLIWAG
+	db 22, BELLSPROUT
+	db 24, WEEPINBELL
+	db 24, POLIWHIRL
+	db 26, POLIWHIRL
+	db 26, POLIWHIRL
+
+	map ROUTE_45
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, GEODUDE
+	db 23, GRAVELER
+	db 24, GLIGAR
+	db 25, DONPHAN
+	db 20, PHANPY
+	db 27, SKARMORY
+	db 27, SKARMORY
+	; day
+	db 23, GEODUDE
+	db 23, GRAVELER
+	db 24, GLIGAR
+	db 25, DONPHAN
+	db 30, DONPHAN
+	db 27, SKARMORY
+	db 27, SKARMORY
+	; nite
+	db 23, GEODUDE
+	db 23, GRAVELER
+	db 24, GLIGAR
+	db 25, GRAVELER
+	db 27, GRAVELER
+	db 27, GRAVELER
+	db 27, GRAVELER
+
+	map ROUTE_46
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 2, GEODUDE
+	db 2, SPEAROW
+	db 3, GEODUDE
+	db 3, RATTATA
+	db 2, PHANPY
+	db 2, RATTATA
+	db 2, RATTATA
+	; day
+	db 2, GEODUDE
+	db 2, SPEAROW
+	db 3, GEODUDE
+	db 3, RATTATA
+	db 2, RATTATA
+	db 2, RATTATA
+	db 2, RATTATA
+	; nite
+	db 2, GEODUDE
+	db 2, RATTATA
+	db 3, GEODUDE
+	db 3, RATTATA
+	db 2, RATTATA
+	db 2, RATTATA
+	db 2, RATTATA
+
+	map SILVER_CAVE_OUTSIDE
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 41, TANGELA
+	db 42, PONYTA
+	db 42, ARBOK
+	db 44, RAPIDASH
+	db 41, DODUO
+	db 43, DODRIO
+	db 43, DODRIO
+	; day
+	db 41, TANGELA
+	db 42, PONYTA
+	db 42, ARBOK
+	db 44, RAPIDASH
+	db 41, DODUO
+	db 43, DODRIO
+	db 43, DODRIO
+	; nite
+	db 41, TANGELA
+	db 42, POLIWHIRL
+	db 42, GOLBAT
+	db 44, POLIWHIRL
+	db 40, GOLBAT
+	db 44, GOLBAT
+	db 44, GOLBAT
+
+	db -1 ; end
diff --git a/data/wild/johto_water.asm b/data/wild/johto_water.asm
new file mode 100644
index 00000000..a4d957ef
--- /dev/null
+++ b/data/wild/johto_water.asm
@@ -0,0 +1,231 @@
+; Johto Pokémon in water
+
+	map RUINS_OF_ALPH_OUTSIDE
+	db 2 percent ; encounter rate
+	db 15, WOOPER
+	db 20, QUAGSIRE
+	db 15, QUAGSIRE
+
+	map UNION_CAVE_1F
+	db 2 percent ; encounter rate
+	db 15, WOOPER
+	db 20, QUAGSIRE
+	db 15, QUAGSIRE
+
+	map UNION_CAVE_B1F
+	db 2 percent ; encounter rate
+	db 15, WOOPER
+	db 20, QUAGSIRE
+	db 15, QUAGSIRE
+
+	map UNION_CAVE_B2F
+	db 4 percent ; encounter rate
+	db 15, TENTACOOL
+	db 20, QUAGSIRE
+	db 20, TENTACRUEL
+
+	map SLOWPOKE_WELL_B1F
+	db 2 percent ; encounter rate
+	db 15, SLOWPOKE
+	db 20, SLOWPOKE
+	db 10, SLOWPOKE
+
+	map SLOWPOKE_WELL_B2F
+	db 2 percent ; encounter rate
+	db 15, SLOWPOKE
+	db 20, SLOWPOKE
+	db 20, SLOWBRO
+
+	map ILEX_FOREST
+	db 2 percent ; encounter rate
+	db 15, PSYDUCK
+	db 10, PSYDUCK
+	db 15, GOLDUCK
+
+	map MOUNT_MORTAR_1F_OUTSIDE
+	db 4 percent ; encounter rate
+	db 15, GOLDEEN
+	db 20, MARILL
+	db 20, SEAKING
+
+	map MOUNT_MORTAR_2F_INSIDE
+	db 2 percent ; encounter rate
+	db 20, GOLDEEN
+	db 25, MARILL
+	db 25, SEAKING
+
+	map MOUNT_MORTAR_B1F
+	db 2 percent ; encounter rate
+	db 15, GOLDEEN
+	db 20, MARILL
+	db 20, SEAKING
+
+	map WHIRL_ISLAND_SW
+	db 4 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, HORSEA
+	db 20, TENTACRUEL
+
+	map WHIRL_ISLAND_B2F
+	db 4 percent ; encounter rate
+	db 15, HORSEA
+	db 20, HORSEA
+	db 20, TENTACRUEL
+
+	map WHIRL_ISLAND_LUGIA_CHAMBER
+	db 4 percent ; encounter rate
+	db 20, HORSEA
+	db 20, TENTACRUEL
+	db 20, SEADRA
+
+	map SILVER_CAVE_ROOM_2
+	db 2 percent ; encounter rate
+	db 35, SEAKING
+	db 35, GOLDUCK
+	db 35, GOLDEEN
+
+	map DARK_CAVE_VIOLET_ENTRANCE
+	db 2 percent ; encounter rate
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+	db 5, MAGIKARP
+
+	map DARK_CAVE_BLACKTHORN_ENTRANCE
+	db 2 percent ; encounter rate
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+	db 5, MAGIKARP
+
+	map DRAGONS_DEN_B1F
+	db 4 percent ; encounter rate
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+	db 10, DRATINI
+
+	map OLIVINE_PORT
+	db 2 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map ROUTE_30
+	db 2 percent ; encounter rate
+	db 20, POLIWAG
+	db 15, POLIWAG
+	db 20, POLIWHIRL
+
+	map ROUTE_31
+	db 2 percent ; encounter rate
+	db 20, POLIWAG
+	db 15, POLIWAG
+	db 20, POLIWHIRL
+
+	map ROUTE_32
+	db 6 percent ; encounter rate
+	db 15, TENTACOOL
+	db 20, QUAGSIRE
+	db 20, TENTACRUEL
+
+	map ROUTE_34
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map ROUTE_35
+	db 4 percent ; encounter rate
+	db 20, PSYDUCK
+	db 15, PSYDUCK
+	db 20, GOLDUCK
+
+	map ROUTE_40
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map ROUTE_41
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 20, TENTACRUEL
+	db 20, MANTINE
+
+	map ROUTE_42
+	db 4 percent ; encounter rate
+	db 20, GOLDEEN
+	db 15, GOLDEEN
+	db 20, SEAKING
+
+	map ROUTE_43
+	db 2 percent ; encounter rate
+	db 20, MAGIKARP
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+
+	map ROUTE_44
+	db 2 percent ; encounter rate
+	db 25, POLIWAG
+	db 20, POLIWAG
+	db 25, POLIWHIRL
+
+	map ROUTE_45
+	db 2 percent ; encounter rate
+	db 20, MAGIKARP
+	db 15, MAGIKARP
+	db 5, MAGIKARP
+
+	map NEW_BARK_TOWN
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map CHERRYGROVE_CITY
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map VIOLET_CITY
+	db 2 percent ; encounter rate
+	db 20, POLIWAG
+	db 15, POLIWAG
+	db 20, POLIWHIRL
+
+	map CIANWOOD_CITY
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map OLIVINE_CITY
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map ECRUTEAK_CITY
+	db 2 percent ; encounter rate
+	db 20, POLIWAG
+	db 15, POLIWAG
+	db 20, POLIWHIRL
+
+	map LAKE_OF_RAGE
+	db 6 percent ; encounter rate
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+	db 15, GYARADOS
+
+	map BLACKTHORN_CITY
+	db 4 percent ; encounter rate
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+	db 5, MAGIKARP
+
+	map SILVER_CAVE_OUTSIDE
+	db 2 percent ; encounter rate
+	db 35, POLIWHIRL
+	db 40, POLIWHIRL
+	db 35, POLIWAG
+
+	db -1 ; end
diff --git a/data/wild/kanto_grass.asm b/data/wild/kanto_grass.asm
new file mode 100644
index 00000000..e06627d1
--- /dev/null
+++ b/data/wild/kanto_grass.asm
@@ -0,0 +1,813 @@
+; Kanto Pokémon in grass
+
+	map DIGLETTS_CAVE
+	db 4 percent, 2 percent, 8 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, DIGLETT
+	db 6, DIGLETT
+	db 12, DIGLETT
+	db 24, DIGLETT
+	db 24, DUGTRIO
+	db 24, DUGTRIO
+	db 24, DUGTRIO
+	; day
+	db 2, DIGLETT
+	db 4, DIGLETT
+	db 8, DIGLETT
+	db 16, DIGLETT
+	db 16, DUGTRIO
+	db 16, DUGTRIO
+	db 16, DUGTRIO
+	; nite
+	db 4, DIGLETT
+	db 8, DIGLETT
+	db 16, DIGLETT
+	db 32, DIGLETT
+	db 32, DUGTRIO
+	db 32, DUGTRIO
+	db 32, DUGTRIO
+
+	map MOUNT_MOON
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 6, ZUBAT
+	db 8, GEODUDE
+	db 8, SANDSHREW
+	db 12, PARAS
+	db 10, GEODUDE
+	db 8, CLEFAIRY
+	db 8, CLEFAIRY
+	; day
+	db 6, ZUBAT
+	db 8, GEODUDE
+	db 8, SANDSHREW
+	db 12, PARAS
+	db 10, GEODUDE
+	db 8, CLEFAIRY
+	db 8, CLEFAIRY
+	; nite
+	db 6, ZUBAT
+	db 8, GEODUDE
+	db 8, CLEFAIRY
+	db 12, PARAS
+	db 10, GEODUDE
+	db 12, CLEFAIRY
+	db 12, CLEFAIRY
+
+	map ROCK_TUNNEL_1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 10, CUBONE
+	db 11, GEODUDE
+	db 12, MACHOP
+	db 12, ZUBAT
+	db 15, MACHOKE
+	db 12, MAROWAK
+	db 12, MAROWAK
+	; day
+	db 10, CUBONE
+	db 11, GEODUDE
+	db 12, MACHOP
+	db 12, ZUBAT
+	db 15, MACHOKE
+	db 12, MAROWAK
+	db 12, MAROWAK
+	; nite
+	db 12, ZUBAT
+	db 11, GEODUDE
+	db 12, GEODUDE
+	db 17, HAUNTER
+	db 15, ZUBAT
+	db 15, ZUBAT
+	db 15, ZUBAT
+
+	map ROCK_TUNNEL_B1F
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 12, CUBONE
+	db 14, GEODUDE
+	db 16, ONIX
+	db 12, ZUBAT
+	db 15, MAROWAK
+	db 15, KANGASKHAN
+	db 15, KANGASKHAN
+	; day
+	db 12, CUBONE
+	db 14, GEODUDE
+	db 16, ONIX
+	db 12, ZUBAT
+	db 15, MAROWAK
+	db 15, KANGASKHAN
+	db 15, KANGASKHAN
+	; nite
+	db 12, ZUBAT
+	db 14, GEODUDE
+	db 16, ONIX
+	db 15, ZUBAT
+	db 15, HAUNTER
+	db 15, GOLBAT
+	db 15, GOLBAT
+
+	map VICTORY_ROAD
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 34, GRAVELER
+	db 32, RHYHORN
+	db 33, ONIX
+	db 34, GOLBAT
+	db 35, SANDSLASH
+	db 35, RHYDON
+	db 35, RHYDON
+	; day
+	db 34, GRAVELER
+	db 32, RHYHORN
+	db 33, ONIX
+	db 34, GOLBAT
+	db 35, SANDSLASH
+	db 35, RHYDON
+	db 35, RHYDON
+	; nite
+	db 34, GOLBAT
+	db 34, GRAVELER
+	db 32, ONIX
+	db 36, GRAVELER
+	db 38, GRAVELER
+	db 40, GRAVELER
+	db 40, GRAVELER
+
+	map TOHJO_FALLS
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 22, ZUBAT
+	db 22, RATICATE
+	db 24, GOLBAT
+	db 21, SLOWPOKE
+	db 20, RATTATA
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+	; day
+	db 22, ZUBAT
+	db 22, RATICATE
+	db 24, GOLBAT
+	db 21, SLOWPOKE
+	db 20, RATTATA
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+	; nite
+	db 22, ZUBAT
+	db 22, RATICATE
+	db 24, GOLBAT
+	db 21, SLOWPOKE
+	db 20, RATTATA
+	db 23, SLOWPOKE
+	db 23, SLOWPOKE
+
+	map ROUTE_1
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 2, PIDGEY
+	db 2, RATTATA
+	db 3, SENTRET
+	db 3, PIDGEY
+	db 6, FURRET
+	db 4, PIDGEY
+	db 4, PIDGEY
+	; day
+	db 2, PIDGEY
+	db 2, RATTATA
+	db 3, SENTRET
+	db 3, PIDGEY
+	db 6, FURRET
+	db 4, PIDGEY
+	db 4, PIDGEY
+	; nite
+	db 2, HOOTHOOT
+	db 2, RATTATA
+	db 3, RATTATA
+	db 3, HOOTHOOT
+	db 6, RATICATE
+	db 4, HOOTHOOT
+	db 4, HOOTHOOT
+
+	map ROUTE_2
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, CATERPIE
+	db 3, LEDYBA
+	db 5, PIDGEY
+	db 7, BUTTERFREE
+	db 7, LEDIAN
+	db 4, PIKACHU
+	db 4, PIKACHU
+	; day
+	db 3, CATERPIE
+	db 3, PIDGEY
+	db 5, PIDGEY
+	db 7, BUTTERFREE
+	db 7, PIDGEOTTO
+	db 4, PIKACHU
+	db 4, PIKACHU
+	; nite
+	db 3, HOOTHOOT
+	db 3, SPINARAK
+	db 5, HOOTHOOT
+	db 7, NOCTOWL
+	db 7, ARIADOS
+	db 4, NOCTOWL
+	db 4, NOCTOWL
+
+	map ROUTE_3
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 5, SPEAROW
+	db 5, RATTATA
+	db 8, EKANS
+	db 10, RATICATE
+	db 10, ARBOK
+	db 10, SANDSHREW
+	db 10, SANDSHREW
+	; day
+	db 5, SPEAROW
+	db 5, RATTATA
+	db 8, EKANS
+	db 10, RATICATE
+	db 10, ARBOK
+	db 10, SANDSHREW
+	db 10, SANDSHREW
+	; nite
+	db 5, RATTATA
+	db 10, RATTATA
+	db 10, RATICATE
+	db 6, ZUBAT
+	db 5, RATTATA
+	db 6, CLEFAIRY
+	db 6, CLEFAIRY
+
+	map ROUTE_4
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 5, SPEAROW
+	db 5, RATTATA
+	db 8, EKANS
+	db 10, RATICATE
+	db 10, ARBOK
+	db 10, SANDSHREW
+	db 10, SANDSHREW
+	; day
+	db 5, SPEAROW
+	db 5, RATTATA
+	db 8, EKANS
+	db 10, RATICATE
+	db 10, ARBOK
+	db 10, SANDSHREW
+	db 10, SANDSHREW
+	; nite
+	db 5, RATTATA
+	db 10, RATTATA
+	db 10, RATICATE
+	db 6, ZUBAT
+	db 5, RATTATA
+	db 6, CLEFAIRY
+	db 6, CLEFAIRY
+
+	map ROUTE_5
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, PIDGEY
+	db 13, SNUBBULL
+	db 15, PIDGEOTTO
+	db 12, ABRA
+	db 14, JIGGLYPUFF
+	db 14, ABRA
+	db 14, ABRA
+	; day
+	db 13, PIDGEY
+	db 13, SNUBBULL
+	db 15, PIDGEOTTO
+	db 12, ABRA
+	db 14, JIGGLYPUFF
+	db 14, ABRA
+	db 14, ABRA
+	; nite
+	db 13, HOOTHOOT
+	db 13, MEOWTH
+	db 15, NOCTOWL
+	db 12, ABRA
+	db 14, JIGGLYPUFF
+	db 14, ABRA
+	db 14, ABRA
+
+	map ROUTE_6
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 13, RATTATA
+	db 13, SNUBBULL
+	db 14, MAGNEMITE
+	db 15, RATICATE
+	db 12, JIGGLYPUFF
+	db 15, GRANBULL
+	db 15, GRANBULL
+	; day
+	db 13, RATTATA
+	db 13, SNUBBULL
+	db 14, MAGNEMITE
+	db 15, RATICATE
+	db 12, JIGGLYPUFF
+	db 15, GRANBULL
+	db 15, GRANBULL
+	; nite
+	db 13, MEOWTH
+	db 13, DROWZEE
+	db 14, MAGNEMITE
+	db 15, PSYDUCK
+	db 12, JIGGLYPUFF
+	db 15, RATICATE
+	db 15, RATICATE
+
+	map ROUTE_7
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 17, RATTATA
+	db 17, SPEAROW
+	db 18, SNUBBULL
+	db 18, RATICATE
+	db 18, JIGGLYPUFF
+	db 16, ABRA
+	db 16, ABRA
+	; day
+	db 17, RATTATA
+	db 17, SPEAROW
+	db 18, SNUBBULL
+	db 18, RATICATE
+	db 18, JIGGLYPUFF
+	db 16, ABRA
+	db 16, ABRA
+	; nite
+	db 17, MEOWTH
+	db 17, MURKROW
+	db 18, HOUNDOUR
+	db 18, PERSIAN
+	db 18, JIGGLYPUFF
+	db 16, ABRA
+	db 16, ABRA
+
+	map ROUTE_8
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 17, SNUBBULL
+	db 19, PIDGEOTTO
+	db 16, ABRA
+	db 17, GROWLITHE
+	db 16, JIGGLYPUFF
+	db 18, KADABRA
+	db 18, KADABRA
+	; day
+	db 17, SNUBBULL
+	db 19, PIDGEOTTO
+	db 16, ABRA
+	db 17, GROWLITHE
+	db 16, JIGGLYPUFF
+	db 18, KADABRA
+	db 18, KADABRA
+	; nite
+	db 17, MEOWTH
+	db 20, NOCTOWL
+	db 16, ABRA
+	db 17, HAUNTER
+	db 16, JIGGLYPUFF
+	db 18, KADABRA
+	db 18, KADABRA
+
+	map ROUTE_9
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 15, RATTATA
+	db 15, SPEAROW
+	db 15, RATICATE
+	db 15, FEAROW
+	db 15, FEAROW
+	db 18, MAROWAK
+	db 18, MAROWAK
+	; day
+	db 15, RATTATA
+	db 15, SPEAROW
+	db 15, RATICATE
+	db 15, FEAROW
+	db 15, FEAROW
+	db 18, MAROWAK
+	db 18, MAROWAK
+	; nite
+	db 15, RATTATA
+	db 15, VENONAT
+	db 15, RATICATE
+	db 15, VENOMOTH
+	db 15, ZUBAT
+	db 18, RATICATE
+	db 18, RATICATE
+
+	map ROUTE_10_NORTH
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 15, SPEAROW
+	db 17, VOLTORB
+	db 15, RATICATE
+	db 15, FEAROW
+	db 15, MAROWAK
+	db 16, ELECTABUZZ
+	db 16, ELECTABUZZ
+	; day
+	db 15, SPEAROW
+	db 17, VOLTORB
+	db 15, RATICATE
+	db 15, FEAROW
+	db 15, MAROWAK
+	db 18, ELECTABUZZ
+	db 18, ELECTABUZZ
+	; nite
+	db 15, VENONAT
+	db 17, VOLTORB
+	db 15, RATICATE
+	db 15, VENOMOTH
+	db 15, ZUBAT
+	db 16, ELECTABUZZ
+	db 16, ELECTABUZZ
+
+	map ROUTE_11
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 14, HOPPIP
+	db 13, RATICATE
+	db 15, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 16, RATTATA
+	db 16, HOPPIP
+	db 16, HOPPIP
+	; day
+	db 14, HOPPIP
+	db 13, RATICATE
+	db 15, MAGNEMITE
+	db 16, PIDGEOTTO
+	db 16, RATTATA
+	db 16, HOPPIP
+	db 16, HOPPIP
+	; nite
+	db 14, DROWZEE
+	db 13, MEOWTH
+	db 15, MAGNEMITE
+	db 16, NOCTOWL
+	db 16, RATICATE
+	db 16, HYPNO
+	db 16, HYPNO
+
+	map ROUTE_13
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, NIDORINO
+	db 23, NIDORINA
+	db 25, PIDGEOTTO
+	db 25, HOPPIP
+	db 27, HOPPIP
+	db 27, HOPPIP
+	db 25, CHANSEY
+	; day
+	db 23, NIDORINO
+	db 23, NIDORINA
+	db 25, PIDGEOTTO
+	db 25, HOPPIP
+	db 27, HOPPIP
+	db 27, HOPPIP
+	db 25, CHANSEY
+	; nite
+	db 23, VENONAT
+	db 23, QUAGSIRE
+	db 25, NOCTOWL
+	db 25, VENOMOTH
+	db 25, QUAGSIRE
+	db 25, QUAGSIRE
+	db 25, CHANSEY
+
+	map ROUTE_14
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 26, NIDORINO
+	db 26, NIDORINA
+	db 28, PIDGEOTTO
+	db 28, HOPPIP
+	db 30, SKIPLOOM
+	db 30, SKIPLOOM
+	db 28, CHANSEY
+	; day
+	db 26, NIDORINO
+	db 26, NIDORINA
+	db 28, PIDGEOTTO
+	db 28, HOPPIP
+	db 30, SKIPLOOM
+	db 30, SKIPLOOM
+	db 28, CHANSEY
+	; nite
+	db 26, VENONAT
+	db 26, QUAGSIRE
+	db 28, NOCTOWL
+	db 28, VENOMOTH
+	db 28, QUAGSIRE
+	db 28, QUAGSIRE
+	db 28, CHANSEY
+
+	map ROUTE_15
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 23, NIDORINO
+	db 23, NIDORINA
+	db 25, PIDGEOTTO
+	db 25, HOPPIP
+	db 27, HOPPIP
+	db 27, HOPPIP
+	db 25, CHANSEY
+	; day
+	db 23, NIDORINO
+	db 23, NIDORINA
+	db 25, PIDGEOTTO
+	db 25, HOPPIP
+	db 27, HOPPIP
+	db 27, HOPPIP
+	db 25, CHANSEY
+	; nite
+	db 23, VENONAT
+	db 23, QUAGSIRE
+	db 25, NOCTOWL
+	db 25, VENOMOTH
+	db 25, QUAGSIRE
+	db 25, QUAGSIRE
+	db 25, CHANSEY
+
+	map ROUTE_16
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 26, GRIMER
+	db 27, FEAROW
+	db 28, GRIMER
+	db 29, FEAROW
+	db 29, FEAROW
+	db 30, MUK
+	db 30, MUK
+	; day
+	db 26, GRIMER
+	db 27, FEAROW
+	db 28, GRIMER
+	db 29, FEAROW
+	db 29, SLUGMA
+	db 30, MUK
+	db 30, MUK
+	; nite
+	db 26, GRIMER
+	db 27, GRIMER
+	db 28, GRIMER
+	db 29, MURKROW
+	db 29, MURKROW
+	db 30, MUK
+	db 30, MUK
+
+	map ROUTE_17
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 30, FEAROW
+	db 29, GRIMER
+	db 31, GRIMER
+	db 32, FEAROW
+	db 33, GRIMER
+	db 33, MUK
+	db 33, MUK
+	; day
+	db 30, FEAROW
+	db 29, SLUGMA
+	db 29, GRIMER
+	db 32, FEAROW
+	db 32, SLUGMA
+	db 33, MUK
+	db 33, MUK
+	; nite
+	db 30, GRIMER
+	db 29, GRIMER
+	db 31, GRIMER
+	db 32, GRIMER
+	db 33, GRIMER
+	db 33, MUK
+	db 33, MUK
+
+	map ROUTE_18
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 26, GRIMER
+	db 27, FEAROW
+	db 28, GRIMER
+	db 29, FEAROW
+	db 29, FEAROW
+	db 30, MUK
+	db 30, MUK
+	; day
+	db 26, GRIMER
+	db 27, FEAROW
+	db 28, GRIMER
+	db 29, FEAROW
+	db 29, SLUGMA
+	db 30, MUK
+	db 30, MUK
+	; nite
+	db 26, GRIMER
+	db 27, GRIMER
+	db 28, GRIMER
+	db 29, GRIMER
+	db 29, GRIMER
+	db 30, MUK
+	db 30, MUK
+
+	map ROUTE_21
+	db 6 percent, 6 percent, 6 percent ; encounter rates: morn/day/nite
+	; morn
+	db 30, TANGELA
+	db 25, RATTATA
+	db 35, TANGELA
+	db 20, RATICATE
+	db 30, MR__MIME
+	db 28, MR__MIME
+	db 28, MR__MIME
+	; day
+	db 30, TANGELA
+	db 25, RATTATA
+	db 35, TANGELA
+	db 20, RATICATE
+	db 28, MR__MIME
+	db 30, MR__MIME
+	db 30, MR__MIME
+	; nite
+	db 30, TANGELA
+	db 25, RATTATA
+	db 35, TANGELA
+	db 20, RATICATE
+	db 30, TANGELA
+	db 28, TANGELA
+	db 28, TANGELA
+
+	map ROUTE_22
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, RATTATA
+	db 3, SPEAROW
+	db 5, SPEAROW
+	db 4, DODUO
+	db 6, PONYTA
+	db 7, FEAROW
+	db 7, FEAROW
+	; day
+	db 3, RATTATA
+	db 3, SPEAROW
+	db 5, SPEAROW
+	db 4, DODUO
+	db 6, PONYTA
+	db 7, FEAROW
+	db 7, FEAROW
+	; nite
+	db 3, RATTATA
+	db 3, POLIWAG
+	db 5, RATTATA
+	db 4, POLIWAG
+	db 6, RATTATA
+	db 7, RATTATA
+	db 7, RATTATA
+
+	map ROUTE_24
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 8, CATERPIE
+	db 10, CATERPIE
+	db 12, METAPOD
+	db 12, ABRA
+	db 10, BELLSPROUT
+	db 14, BUTTERFREE
+	db 14, BUTTERFREE
+	; day
+	db 8, CATERPIE
+	db 12, SUNKERN
+	db 10, CATERPIE
+	db 12, ABRA
+	db 10, BELLSPROUT
+	db 14, BUTTERFREE
+	db 14, BUTTERFREE
+	; nite
+	db 10, VENONAT
+	db 10, ODDISH
+	db 12, ODDISH
+	db 12, ABRA
+	db 10, BELLSPROUT
+	db 14, GLOOM
+	db 14, GLOOM
+
+	map ROUTE_25
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 10, CATERPIE
+	db 10, PIDGEY
+	db 12, PIDGEOTTO
+	db 12, METAPOD
+	db 10, BELLSPROUT
+	db 14, BUTTERFREE
+	db 14, BUTTERFREE
+	; day
+	db 10, CATERPIE
+	db 10, PIDGEY
+	db 12, PIDGEOTTO
+	db 12, METAPOD
+	db 10, BELLSPROUT
+	db 14, BUTTERFREE
+	db 14, BUTTERFREE
+	; nite
+	db 10, ODDISH
+	db 10, HOOTHOOT
+	db 10, VENONAT
+	db 12, NOCTOWL
+	db 10, BELLSPROUT
+	db 14, NOCTOWL
+	db 14, NOCTOWL
+
+	map ROUTE_26
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 28, DODUO
+	db 28, SANDSLASH
+	db 32, PONYTA
+	db 30, RATICATE
+	db 30, DODUO
+	db 30, ARBOK
+	db 30, ARBOK
+	; day
+	db 28, DODUO
+	db 28, SANDSLASH
+	db 32, PONYTA
+	db 30, RATICATE
+	db 30, DODUO
+	db 30, ARBOK
+	db 30, ARBOK
+	; nite
+	db 28, NOCTOWL
+	db 28, RATICATE
+	db 32, NOCTOWL
+	db 30, RATICATE
+	db 30, QUAGSIRE
+	db 30, QUAGSIRE
+	db 30, QUAGSIRE
+
+	map ROUTE_27
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 28, DODUO
+	db 28, ARBOK
+	db 30, RATICATE
+	db 30, DODUO
+	db 32, PONYTA
+	db 30, DODRIO
+	db 30, DODRIO
+	; day
+	db 28, DODUO
+	db 28, ARBOK
+	db 30, RATICATE
+	db 30, DODUO
+	db 32, PONYTA
+	db 30, DODRIO
+	db 30, DODRIO
+	; nite
+	db 28, QUAGSIRE
+	db 28, NOCTOWL
+	db 30, RATICATE
+	db 30, QUAGSIRE
+	db 32, NOCTOWL
+	db 32, NOCTOWL
+	db 32, NOCTOWL
+
+	map ROUTE_28
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 39, TANGELA
+	db 40, PONYTA
+	db 40, RAPIDASH
+	db 42, ARBOK
+	db 41, DODUO
+	db 43, DODRIO
+	db 43, DODRIO
+	; day
+	db 39, TANGELA
+	db 40, PONYTA
+	db 40, RAPIDASH
+	db 42, ARBOK
+	db 41, DODUO
+	db 43, DODRIO
+	db 43, DODRIO
+	; nite
+	db 39, TANGELA
+	db 40, POLIWHIRL
+	db 40, GOLBAT
+	db 40, POLIWHIRL
+	db 42, GOLBAT
+	db 42, GOLBAT
+	db 42, GOLBAT
+
+	db -1 ; end
diff --git a/data/wild/kanto_water.asm b/data/wild/kanto_water.asm
new file mode 100644
index 00000000..558d56a2
--- /dev/null
+++ b/data/wild/kanto_water.asm
@@ -0,0 +1,147 @@
+; Kanto Pokémon in water
+
+	map TOHJO_FALLS
+	db 4 percent ; encounter rate
+	db 20, GOLDEEN
+	db 20, SLOWPOKE
+	db 20, SEAKING
+
+	map VERMILION_PORT
+	db 2 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map ROUTE_4
+	db 4 percent ; encounter rate
+	db 10, GOLDEEN
+	db 5, GOLDEEN
+	db 10, SEAKING
+
+	map ROUTE_6
+	db 2 percent ; encounter rate
+	db 10, PSYDUCK
+	db 5, PSYDUCK
+	db 10, GOLDUCK
+
+	map ROUTE_9
+	db 4 percent ; encounter rate
+	db 15, GOLDEEN
+	db 10, GOLDEEN
+	db 15, SEAKING
+
+	map ROUTE_10_NORTH
+	db 4 percent ; encounter rate
+	db 15, GOLDEEN
+	db 10, GOLDEEN
+	db 15, SEAKING
+
+	map ROUTE_12
+	db 6 percent ; encounter rate
+	db 25, TENTACOOL
+	db 25, QUAGSIRE
+	db 25, TENTACRUEL
+
+	map ROUTE_13
+	db 6 percent ; encounter rate
+	db 25, TENTACOOL
+	db 25, QUAGSIRE
+	db 25, TENTACRUEL
+
+	map ROUTE_19
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map ROUTE_20
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map ROUTE_21
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map ROUTE_22
+	db 2 percent ; encounter rate
+	db 10, POLIWAG
+	db 5, POLIWAG
+	db 10, POLIWHIRL
+
+	map ROUTE_24
+	db 4 percent ; encounter rate
+	db 10, GOLDEEN
+	db 5, GOLDEEN
+	db 10, SEAKING
+
+	map ROUTE_25
+	db 4 percent ; encounter rate
+	db 10, GOLDEEN
+	db 5, GOLDEEN
+	db 10, SEAKING
+
+	map ROUTE_26
+	db 6 percent ; encounter rate
+	db 30, TENTACOOL
+	db 25, TENTACOOL
+	db 30, TENTACRUEL
+
+	map ROUTE_27
+	db 6 percent ; encounter rate
+	db 20, TENTACOOL
+	db 15, TENTACOOL
+	db 20, TENTACRUEL
+
+	map ROUTE_28
+	db 2 percent ; encounter rate
+	db 40, POLIWAG
+	db 35, POLIWAG
+	db 40, POLIWHIRL
+
+	map PALLET_TOWN
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map VIRIDIAN_CITY
+	db 2 percent ; encounter rate
+	db 10, POLIWAG
+	db 5, POLIWAG
+	db 10, POLIWHIRL
+
+	map CERULEAN_CITY
+	db 4 percent ; encounter rate
+	db 10, GOLDEEN
+	db 5, GOLDEEN
+	db 10, SEAKING
+
+	map VERMILION_CITY
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	map CELADON_CITY
+	db 2 percent ; encounter rate
+	db 20, GRIMER
+	db 15, GRIMER
+	db 15, MUK
+
+	map FUCHSIA_CITY
+	db 2 percent ; encounter rate
+	db 20, MAGIKARP
+	db 15, MAGIKARP
+	db 10, MAGIKARP
+
+	map CINNABAR_ISLAND
+	db 6 percent ; encounter rate
+	db 35, TENTACOOL
+	db 30, TENTACOOL
+	db 35, TENTACRUEL
+
+	db -1 ; end
diff --git a/data/wild/swarm_grass.asm b/data/wild/swarm_grass.asm
new file mode 100644
index 00000000..61d0d853
--- /dev/null
+++ b/data/wild/swarm_grass.asm
@@ -0,0 +1,59 @@
+; swarms in grass
+
+; Dunsparce swarm
+	map DARK_CAVE_VIOLET_ENTRANCE
+	db 4 percent, 4 percent, 4 percent ; encounter rates: morn/day/nite
+	; morn
+	db 3, GEODUDE
+	db 3, DUNSPARCE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 2, DUNSPARCE
+	db 4, DUNSPARCE
+	db 4, DUNSPARCE
+	; day
+	db 3, GEODUDE
+	db 3, DUNSPARCE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 2, DUNSPARCE
+	db 4, DUNSPARCE
+	db 4, DUNSPARCE
+	; nite
+	db 3, GEODUDE
+	db 3, DUNSPARCE
+	db 2, ZUBAT
+	db 2, GEODUDE
+	db 2, DUNSPARCE
+	db 4, DUNSPARCE
+	db 4, DUNSPARCE
+
+; Yanma swarm
+	map ROUTE_35
+	db 10 percent, 10 percent, 10 percent ; encounter rates: morn/day/nite
+	; morn
+	db 12, NIDORAN_M
+	db 12, NIDORAN_F
+	db 12, YANMA
+	db 14, YANMA
+	db 14, PIDGEY
+	db 10, DITTO
+	db 10, DITTO
+	; day
+	db 12, NIDORAN_M
+	db 12, NIDORAN_F
+	db 12, YANMA
+	db 14, YANMA
+	db 14, PIDGEY
+	db 10, DITTO
+	db 10, DITTO
+	; nite
+	db 12, NIDORAN_M
+	db 12, NIDORAN_F
+	db 12, YANMA
+	db 14, YANMA
+	db 14, HOOTHOOT
+	db 10, DITTO
+	db 10, DITTO
+
+	db -1 ; end
diff --git a/data/wild/swarm_water.asm b/data/wild/swarm_water.asm
new file mode 100644
index 00000000..67751b2b
--- /dev/null
+++ b/data/wild/swarm_water.asm
@@ -0,0 +1,5 @@
+; swarms in water
+
+	; No swarms encountered while surfing in Crystal
+
+	db -1 ; end