start decompiling mystery event script

20 files changed, 488 insertions, 943 deletions

diff --git a/asm/battle_frontier_2.s b/asm/battle_frontier_2.s
index 23f870d4d..98b5187c2 100755
--- a/asm/battle_frontier_2.s
+++ b/asm/battle_frontier_2.s
@@ -18556,7 +18556,7 @@ _081A4202:
 	thumb_func_start sub_81A4224
 sub_81A4224: @ 81A4224
 	push {lr}
-	bl sub_81652B4
+	bl ValidateEReaderTrainer
 	pop {r0}
 	bx r0
 	thumb_func_end sub_81A4224
diff --git a/asm/battle_tower.s b/asm/battle_tower.s
index 96769dcbf..b5b06c4e1 100755
--- a/asm/battle_tower.s
+++ b/asm/battle_tower.s
@@ -5898,8 +5898,8 @@ _08165294:
 	.pool
 	thumb_func_end GetEreaderTrainerName
 
-	thumb_func_start sub_81652B4
-sub_81652B4: @ 81652B4
+	thumb_func_start ValidateEReaderTrainer
+ValidateEReaderTrainer: @ 81652B4
 	push {r4-r6,lr}
 	ldr r2, =gSpecialVar_Result
 	movs r0, 0
@@ -5951,7 +5951,7 @@ _08165316:
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end sub_81652B4
+	thumb_func_end ValidateEReaderTrainer
 
 	thumb_func_start sub_8165328
 sub_8165328: @ 8165328
diff --git a/asm/link.s b/asm/link.s
index 05dda2cb7..90da1a34d 100644
--- a/asm/link.s
+++ b/asm/link.s
@@ -38868,7 +38868,7 @@ _0801D7D0:
 	ldr r1, [r4, 0x18]
 	movs r2, 0xBC
 	bl memcpy
-	bl sub_81652B4
+	bl ValidateEReaderTrainer
 	b _0801D804
 	.pool
 _0801D7F0:
diff --git a/asm/macros/event.inc b/asm/macros/event.inc
index d7b4bca37..f2d14b945 100644
--- a/asm/macros/event.inc
+++ b/asm/macros/event.inc
@@ -262,6 +262,13 @@
 	.2byte \output
 	.2byte SPECIAL_\function
 	.endm
+	
+	@ temporary solution
+	.macro specialvar_ output, functionId
+	.byte 0x26
+	.2byte \output
+	.2byte \functionId
+	.endm
 
 	@ Blocks script execution until a command or ASM code manually unblocks it. Generally used with specific commands and specials. If this command runs, and a subsequent command or piece of ASM does not unblock state, the script will remain blocked indefinitely (essentially a hang).
 	.macro waitstate 
diff --git a/asm/mystery_event_menu.s b/asm/mystery_event_menu.s
index f15346b81..9ea735768 100644
--- a/asm/mystery_event_menu.s
+++ b/asm/mystery_event_menu.s
@@ -468,7 +468,7 @@ _08178D74:
 	bne _08178E58
 	ldr r5, =0x0201c000
 	adds r0, r5, 0
-	bl sub_81538A0
+	bl RunMysteryEventScript
 	adds r4, r0, 0
 	lsls r4, 16
 	lsrs r4, 16
diff --git a/asm/mystery_event_script.s b/asm/mystery_event_script.s
deleted file mode 100644
index a7cee8846..000000000
--- a/asm/mystery_event_script.s
+++ /dev/null
@@ -1,870 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_81537CC
-sub_81537CC: @ 81537CC
-	push {r4,lr}
-	adds r4, r3, 0
-	lsls r0, 16
-	lsrs r0, 16
-	lsls r2, 16
-	lsrs r2, 16
-	movs r3, 0x1
-	ands r0, r3
-	cmp r0, 0
-	beq _081537FC
-	ands r1, r3
-	cmp r1, 0
-	beq _081537FC
-	movs r0, 0x4
-	ands r2, r0
-	cmp r2, 0
-	beq _081537FC
-	movs r0, 0x80
-	lsls r0, 2
-	ands r0, r4
-	cmp r0, 0
-	beq _081537FC
-	movs r0, 0x1
-	b _081537FE
-_081537FC:
-	movs r0, 0
-_081537FE:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_81537CC
-
-	thumb_func_start sub_8153804
-sub_8153804: @ 8153804
-	push {lr}
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftCantBeUsed
-	bl StringExpandPlaceholders
-	movs r0, 0x3
-	bl SetMysteryEventScriptStatus
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8153804
-
-	thumb_func_start sub_8153820
-sub_8153820: @ 8153820
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	adds r5, r1, 0
-	ldr r1, =gUnknown_082DED2C
-	ldr r2, =gUnknown_082DED2C + 0x44
-	bl InitScriptContext
-	adds r0, r4, 0
-	adds r1, r5, 0
-	bl SetupBytecodeScript
-	str r5, [r4, 0x64]
-	movs r0, 0
-	str r0, [r4, 0x68]
-	str r0, [r4, 0x6C]
-	str r0, [r4, 0x70]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8153820
-
-	thumb_func_start sub_8153850
-sub_8153850: @ 8153850
-	push {r4,lr}
-	adds r4, r0, 0
-	bl RunScriptCommand
-	lsls r0, 24
-	cmp r0, 0
-	beq _08153868
-	ldr r0, [r4, 0x70]
-	cmp r0, 0
-	beq _08153868
-	movs r0, 0x1
-	b _0815386A
-_08153868:
-	movs r0, 0
-_0815386A:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153850
-
-	thumb_func_start sub_8153870
-sub_8153870: @ 8153870
-	push {lr}
-	adds r1, r0, 0
-	ldr r0, =gUnknown_0203BBC0
-	bl sub_8153820
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8153870
-
-	thumb_func_start sub_8153884
-sub_8153884: @ 8153884
-	push {r4,r5,lr}
-	adds r5, r0, 0
-	ldr r4, =gUnknown_0203BBC0
-	adds r0, r4, 0
-	bl sub_8153850
-	ldr r1, [r4, 0x6C]
-	str r1, [r5]
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153884
-
-	thumb_func_start sub_81538A0
-sub_81538A0: @ 81538A0
-	push {r4,lr}
-	adds r1, r0, 0
-	ldr r4, =gUnknown_0203BBC0
-	adds r0, r4, 0
-	bl sub_8153820
-_081538AC:
-	adds r0, r4, 0
-	bl sub_8153850
-	cmp r0, 0
-	bne _081538AC
-	ldr r0, [r4, 0x6C]
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_81538A0
-
-	thumb_func_start SetMysteryEventScriptStatus
-SetMysteryEventScriptStatus: @ 81538C4
-	ldr r1, =gUnknown_0203BBC0
-	str r0, [r1, 0x6C]
-	bx lr
-	.pool
-	thumb_func_end SetMysteryEventScriptStatus
-
-	thumb_func_start sub_81538D0
-sub_81538D0: @ 81538D0
-	push {lr}
-	movs r2, 0
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldr r1, =0x00003b18
-	adds r3, r0, r1
-	movs r1, 0
-_081538DE:
-	adds r0, r3, r1
-	ldrb r0, [r0]
-	adds r2, r0
-	adds r1, 0x1
-	cmp r1, 0xB
-	bls _081538DE
-	adds r0, r2, 0
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_81538D0
-
-	thumb_func_start sub_81538F8
-sub_81538F8: @ 81538F8
-	push {r4,r5,lr}
-	ldr r5, =gSaveBlock1Ptr
-	ldr r0, [r5]
-	ldr r1, =0x00003b18
-	adds r4, r0, r1
-	bl sub_81538D0
-	adds r1, r0, 0
-	ldrb r0, [r4]
-	cmp r0, 0
-	beq _0815392A
-	ldrb r0, [r4, 0x1]
-	cmp r0, 0
-	beq _0815392A
-	ldrh r0, [r4, 0x2]
-	cmp r0, 0
-	beq _0815392A
-	cmp r1, 0
-	beq _0815392A
-	ldr r0, [r5]
-	ldr r2, =0x00003b14
-	adds r0, r2
-	ldr r0, [r0]
-	cmp r1, r0
-	beq _0815393C
-_0815392A:
-	movs r0, 0
-	b _0815393E
-	.pool
-_0815393C:
-	movs r0, 0x1
-_0815393E:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_81538F8
-
-	thumb_func_start sub_8153944
-sub_8153944: @ 8153944
-	push {lr}
-	sub sp, 0x4
-	mov r1, sp
-	movs r0, 0
-	strh r0, [r1]
-	ldr r0, =gSaveBlock1Ptr
-	ldr r1, [r0]
-	ldr r0, =0x00003b14
-	adds r1, r0
-	ldr r2, =0x01000008
-	mov r0, sp
-	bl CpuSet
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8153944
-
-	thumb_func_start sub_8153970
-sub_8153970: @ 8153970
-	push {r4-r6,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	adds r3, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	adds r5, r1, 0
-	lsls r2, 16
-	lsrs r2, 16
-	adds r6, r2, 0
-	cmp r3, 0
-	beq _08153990
-	cmp r1, 0
-	beq _08153990
-	cmp r2, 0
-	bne _08153996
-_08153990:
-	bl sub_8153944
-	b _081539BC
-_08153996:
-	ldr r4, =gSaveBlock1Ptr
-	ldr r0, [r4]
-	ldr r1, =0x00003b18
-	adds r0, r1
-	strb r3, [r0]
-	ldr r0, [r4]
-	ldr r2, =0x00003b19
-	adds r0, r2
-	strb r5, [r0]
-	ldr r0, [r4]
-	adds r1, 0x2
-	adds r0, r1
-	strh r6, [r0]
-	bl sub_81538D0
-	ldr r1, [r4]
-	ldr r2, =0x00003b14
-	adds r1, r2
-	str r0, [r1]
-_081539BC:
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8153970
-
-	thumb_func_start sub_81539D4
-sub_81539D4: @ 81539D4
-	push {r4-r6,lr}
-	ldr r6, =gSaveBlock1Ptr
-	ldr r0, [r6]
-	ldr r1, =0x00003b18
-	adds r4, r0, r1
-	bl sub_81538F8
-	cmp r0, 0
-	bne _081539F8
-	bl sub_8153944
-	movs r0, 0
-	b _08153A1A
-	.pool
-_081539F8:
-	ldrh r5, [r4, 0x2]
-	ldrb r0, [r4, 0x1]
-	subs r0, 0x1
-	strb r0, [r4, 0x1]
-	lsls r0, 24
-	cmp r0, 0
-	bne _08153A0C
-	bl sub_8153944
-	b _08153A18
-_08153A0C:
-	bl sub_81538D0
-	ldr r1, [r6]
-	ldr r2, =0x00003b14
-	adds r1, r2
-	str r0, [r1]
-_08153A18:
-	adds r0, r5, 0
-_08153A1A:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_81539D4
-
-	thumb_func_start script_status_stop_and_ret_1
-script_status_stop_and_ret_1: @ 8153A24
-	push {lr}
-	bl StopScript
-	movs r0, 0x1
-	pop {r1}
-	bx r1
-	thumb_func_end script_status_stop_and_ret_1
-
-	thumb_func_start sub_8153A30
-sub_8153A30: @ 8153A30
-	push {r4-r7,lr}
-	adds r7, r0, 0
-	bl ScriptReadWord
-	str r0, [r7, 0x68]
-	adds r0, r7, 0
-	bl ScriptReadHalfword
-	adds r5, r0, 0
-	lsls r5, 16
-	lsrs r5, 16
-	adds r0, r7, 0
-	bl ScriptReadWord
-	adds r6, r0, 0
-	adds r0, r7, 0
-	bl ScriptReadHalfword
-	adds r4, r0, 0
-	lsls r4, 16
-	lsrs r4, 16
-	adds r0, r7, 0
-	bl ScriptReadWord
-	adds r3, r0, 0
-	adds r0, r5, 0
-	adds r1, r6, 0
-	adds r2, r4, 0
-	bl sub_81537CC
-	cmp r0, 0x1
-	bne _08153A74
-	str r0, [r7, 0x70]
-	b _08153A78
-_08153A74:
-	bl sub_8153804
-_08153A78:
-	movs r0, 0x1
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153A30
-
-	thumb_func_start sub_8153A80
-sub_8153A80: @ 8153A80
-	movs r0, 0
-	bx lr
-	thumb_func_end sub_8153A80
-
-	thumb_func_start sub_8153A84
-sub_8153A84: @ 8153A84
-	ldr r1, [r0, 0x8]
-	ldrb r2, [r1]
-	adds r1, 0x1
-	str r1, [r0, 0x8]
-	str r2, [r0, 0x6C]
-	movs r0, 0
-	bx lr
-	thumb_func_end sub_8153A84
-
-	thumb_func_start sub_8153A94
-sub_8153A94: @ 8153A94
-	push {r4,r5,lr}
-	adds r4, r0, 0
-	ldr r0, [r4, 0x8]
-	ldrb r5, [r0]
-	adds r0, 0x1
-	str r0, [r4, 0x8]
-	adds r0, r4, 0
-	bl ScriptReadWord
-	ldr r1, [r4, 0x68]
-	subs r0, r1
-	ldr r1, [r4, 0x64]
-	adds r1, r0, r1
-	cmp r5, 0xFF
-	beq _08153AB8
-	ldr r0, [r4, 0x6C]
-	cmp r5, r0
-	bne _08153ABE
-_08153AB8:
-	ldr r0, =gStringVar4
-	bl StringExpandPlaceholders
-_08153ABE:
-	movs r0, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153A94
-
-	thumb_func_start sub_8153ACC
-sub_8153ACC: @ 8153ACC
-	push {r4,lr}
-	adds r4, r0, 0
-	bl ScriptReadWord
-	ldr r1, [r4, 0x68]
-	subs r0, r1
-	ldr r1, [r4, 0x64]
-	adds r0, r1
-	bl ScriptContext2_RunNewScript
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153ACC
-
-	thumb_func_start sub_8153AE8
-sub_8153AE8: @ 8153AE8
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	adds r7, r0, 0
-	bl IsEnigmaBerryValid
-	mov r8, r0
-	adds r0, r7, 0
-	bl ScriptReadWord
-	adds r4, r0, 0
-	ldr r0, [r7, 0x68]
-	subs r4, r0
-	ldr r0, [r7, 0x64]
-	adds r4, r0
-	ldr r0, =gStringVar1
-	mov r9, r0
-	ldr r6, =gSaveBlock1Ptr
-	ldr r1, [r6]
-	ldr r5, =0x000031f8
-	adds r1, r5
-	movs r2, 0x7
-	bl StringCopyN
-	adds r0, r4, 0
-	bl SetEnigmaBerry
-	ldr r4, =gStringVar2
-	ldr r1, [r6]
-	adds r1, r5
-	adds r0, r4, 0
-	movs r2, 0x7
-	bl StringCopyN
-	mov r0, r8
-	cmp r0, 0
-	bne _08153B54
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftBerry
-	b _08153B74
-	.pool
-_08153B54:
-	mov r0, r9
-	adds r1, r4, 0
-	bl StringCompare
-	cmp r0, 0
-	beq _08153B70
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftBerryTransform
-	b _08153B74
-	.pool
-_08153B70:
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftBerryObtained
-_08153B74:
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r7, 0x6C]
-	bl IsEnigmaBerryValid
-	cmp r0, 0x1
-	bne _08153B9C
-	ldr r0, =0x0000402d
-	movs r1, 0x1
-	bl VarSet
-	b _08153BA0
-	.pool
-_08153B9C:
-	movs r0, 0x1
-	str r0, [r7, 0x6C]
-_08153BA0:
-	movs r0, 0
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153AE8
-
-	thumb_func_start sub_8153BB0
-sub_8153BB0: @ 8153BB0
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r2, [r4, 0x8]
-	ldrb r0, [r2]
-	adds r2, 0x1
-	str r2, [r4, 0x8]
-	ldrb r1, [r2]
-	adds r2, 0x1
-	str r2, [r4, 0x8]
-	bl GiveGiftRibbonToParty
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftSpecialRibbon
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r4, 0x6C]
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153BB0
-
-	thumb_func_start sub_8153BE4
-sub_8153BE4: @ 8153BE4
-	push {r4-r6,lr}
-	mov r6, r9
-	mov r5, r8
-	push {r5,r6}
-	sub sp, 0x4
-	adds r4, r0, 0
-	ldr r0, [r4, 0x8]
-	ldrb r1, [r0]
-	mov r9, r1
-	adds r0, 0x1
-	str r0, [r4, 0x8]
-	ldrb r1, [r0]
-	mov r8, r1
-	adds r1, r0, 0x1
-	str r1, [r4, 0x8]
-	ldrb r6, [r0, 0x1]
-	adds r1, 0x1
-	str r1, [r4, 0x8]
-	adds r0, r4, 0
-	bl ScriptReadWord
-	adds r5, r0, 0
-	ldr r0, [r4, 0x68]
-	subs r5, r0
-	ldr r0, [r4, 0x64]
-	adds r5, r0
-	adds r0, r4, 0
-	bl ScriptReadWord
-	adds r1, r0, 0
-	ldr r0, [r4, 0x68]
-	subs r1, r0
-	ldr r0, [r4, 0x64]
-	adds r1, r0
-	subs r1, r5
-	lsls r1, 16
-	lsrs r1, 16
-	str r6, [sp]
-	adds r0, r5, 0
-	mov r2, r9
-	mov r3, r8
-	bl InitRamScript
-	movs r0, 0
-	add sp, 0x4
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153BE4
-
-	thumb_func_start sub_8153C4C
-sub_8153C4C: @ 8153C4C
-	push {r4,lr}
-	adds r4, r0, 0
-	bl EnableNationalPokedex
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftNationalDex
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r4, 0x6C]
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153C4C
-
-	thumb_func_start sub_8153C70
-sub_8153C70: @ 8153C70
-	push {r4,lr}
-	adds r4, r0, 0
-	ldr r1, [r4, 0x8]
-	ldrb r0, [r1]
-	adds r1, 0x1
-	str r1, [r4, 0x8]
-	bl sub_811EFC0
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftRareWord
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r4, 0x6C]
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153C70
-
-	thumb_func_start sub_8153C9C
-sub_8153C9C: @ 8153C9C
-	push {r4,r5,lr}
-	ldr r1, [r0, 0x8]
-	ldrb r5, [r1]
-	adds r1, 0x1
-	str r1, [r0, 0x8]
-	ldrb r4, [r1]
-	adds r1, 0x1
-	str r1, [r0, 0x8]
-	bl ScriptReadHalfword
-	adds r2, r0, 0
-	lsls r2, 16
-	lsrs r2, 16
-	adds r0, r5, 0
-	adds r1, r4, 0
-	bl sub_8153970
-	movs r0, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153C9C
-
-	thumb_func_start sub_8153CC8
-sub_8153CC8: @ 8153CC8
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x88
-	adds r6, r0, 0
-	bl ScriptReadWord
-	ldr r1, [r6, 0x68]
-	subs r0, r1
-	ldr r1, [r6, 0x64]
-	adds r5, r0, r1
-	movs r0, 0x64
-	adds r0, r5
-	mov r8, r0
-	add r4, sp, 0x24
-	adds r0, r4, 0
-	adds r1, r5, 0
-	movs r2, 0x64
-	bl memcpy
-	adds r0, r4, 0
-	movs r1, 0x41
-	bl GetMonData
-	lsls r0, 16
-	lsrs r4, r0, 16
-	movs r0, 0xCE
-	lsls r0, 1
-	cmp r4, r0
-	bne _08153D18
-	ldr r0, =gStringVar1
-	ldr r1, =gText_EggNickname
-	movs r2, 0xB
-	bl StringCopyN
-	b _08153D22
-	.pool
-_08153D18:
-	ldr r0, =gStringVar1
-	ldr r1, =gText_Pokemon
-	movs r2, 0xB
-	bl StringCopyN
-_08153D22:
-	ldr r0, =gPlayerPartyCount
-	ldrb r0, [r0]
-	cmp r0, 0x6
-	bne _08153D4C
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftFullParty
-	bl StringExpandPlaceholders
-	movs r0, 0x3
-	b _08153DB6
-	.pool
-_08153D4C:
-	ldr r7, =gPlayerParty + 500
-	adds r0, r7, 0
-	adds r1, r5, 0
-	movs r2, 0x64
-	bl memcpy
-	mov r0, sp
-	mov r1, r8
-	movs r2, 0x24
-	bl memcpy
-	movs r0, 0xCE
-	lsls r0, 1
-	cmp r4, r0
-	beq _08153D86
-	adds r0, r4, 0
-	bl SpeciesToNationalPokedexNum
-	adds r4, r0, 0
-	lsls r4, 16
-	lsrs r4, 16
-	adds r0, r4, 0
-	movs r1, 0x2
-	bl GetSetPokedexFlag
-	adds r0, r4, 0
-	movs r1, 0x3
-	bl GetSetPokedexFlag
-_08153D86:
-	adds r0, r7, 0
-	movs r1, 0xC
-	bl GetMonData
-	lsls r0, 16
-	lsrs r0, 16
-	bl ItemIsMail
-	lsls r0, 24
-	cmp r0, 0
-	beq _08153DA4
-	adds r0, r7, 0
-	mov r1, sp
-	bl GiveMailToMon2
-_08153DA4:
-	bl CompactPartySlots
-	bl CalculatePlayerPartyCount
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftSentOver
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-_08153DB6:
-	str r0, [r6, 0x6C]
-	movs r0, 0
-	add sp, 0x88
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153CC8
-
-	thumb_func_start sub_8153DD4
-sub_8153DD4: @ 8153DD4
-	push {r4,lr}
-	adds r4, r0, 0
-	bl ScriptReadWord
-	adds r1, r0, 0
-	ldr r0, [r4, 0x68]
-	subs r1, r0
-	ldr r0, [r4, 0x64]
-	adds r1, r0
-	ldr r0, =gSaveBlock2Ptr
-	ldr r0, [r0]
-	ldr r2, =0x00000bec
-	adds r0, r2
-	movs r2, 0xBC
-	bl memcpy
-	bl sub_81652B4
-	ldr r0, =gStringVar4
-	ldr r1, =gText_MysteryGiftNewTrainer
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r4, 0x6C]
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153DD4
-
-	thumb_func_start sub_8153E1C
-sub_8153E1C: @ 8153E1C
-	push {r4,lr}
-	adds r4, r0, 0
-	bl EnableResetRTC
-	ldr r0, =gStringVar4
-	ldr r1, =gText_InGameClockUsable
-	bl StringExpandPlaceholders
-	movs r0, 0x2
-	str r0, [r4, 0x6C]
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_8153E1C
-
-	thumb_func_start sub_8153E40
-sub_8153E40: @ 8153E40
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	bl ScriptReadWord
-	adds r5, r0, 0
-	adds r0, r6, 0
-	bl ScriptReadWord
-	adds r4, r0, 0
-	ldr r0, [r6, 0x68]
-	subs r4, r0
-	ldr r0, [r6, 0x64]
-	adds r4, r0
-	adds r0, r6, 0
-	bl ScriptReadWord
-	adds r1, r0, 0
-	ldr r0, [r6, 0x68]
-	subs r1, r0
-	ldr r0, [r6, 0x64]
-	adds r1, r0
-	subs r1, r4
-	adds r0, r4, 0
-	bl CalcByteArraySum
-	cmp r5, r0
-	beq _08153E7E
-	movs r0, 0
-	str r0, [r6, 0x70]
-	movs r0, 0x1
-	str r0, [r6, 0x6C]
-_08153E7E:
-	movs r0, 0x1
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153E40
-
-	thumb_func_start sub_8153E88
-sub_8153E88: @ 8153E88
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	bl ScriptReadWord
-	adds r5, r0, 0
-	adds r0, r6, 0
-	bl ScriptReadWord
-	adds r4, r0, 0
-	ldr r0, [r6, 0x68]
-	subs r4, r0
-	ldr r0, [r6, 0x64]
-	adds r4, r0
-	adds r0, r6, 0
-	bl ScriptReadWord
-	adds r1, r0, 0
-	ldr r0, [r6, 0x68]
-	subs r1, r0
-	ldr r0, [r6, 0x64]
-	adds r1, r0
-	subs r1, r4
-	adds r0, r4, 0
-	bl CalcCRC16
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r5, r0
-	beq _08153ECA
-	movs r0, 0
-	str r0, [r6, 0x70]
-	movs r0, 0x1
-	str r0, [r6, 0x6C]
-_08153ECA:
-	movs r0, 0x1
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8153E88
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/asm/record_mixing.s b/asm/record_mixing.s
index f4271556c..b7bcca4a8 100644
--- a/asm/record_mixing.s
+++ b/asm/record_mixing.s
@@ -114,7 +114,7 @@ sub_80E6CA0: @ 80E6CA0
 	lsls r0, 24
 	cmp r0, 0
 	bne _080E6D1C
-	bl sub_81539D4
+	bl GetRecordMixingGift
 	ldr r2, =0x000011c8
 	adds r1, r5, r2
 	strh r0, [r1]
@@ -186,7 +186,7 @@ sub_80E6D54: @ 80E6D54
 	lsls r0, 24
 	cmp r0, 0
 	bne _080E6DEE
-	bl sub_81539D4
+	bl GetRecordMixingGift
 	ldr r2, =0x000011c8
 	adds r1, r5, r2
 	strh r0, [r1]
@@ -282,7 +282,7 @@ _080E6E60:
 	lsls r0, 24
 	cmp r0, 0
 	bne _080E6EFA
-	bl sub_81539D4
+	bl GetRecordMixingGift
 	ldr r1, [r5]
 	ldr r2, =0x00001210
 	adds r1, r2
diff --git a/data/mystery_event_script_cmd_table.s b/data/mystery_event_script_cmd_table.s
new file mode 100644
index 000000000..867b05e07
--- /dev/null
+++ b/data/mystery_event_script_cmd_table.s
@@ -0,0 +1,22 @@
+	.section script_data, "aw", %progbits
+
+	.align 2
+gMysteryEventScriptCmdTable:: @ 82DED2C
+	.4byte MEScrCmd_nop
+	.4byte MEScrCmd_checkcompat
+	.4byte MEScrCmd_end
+	.4byte MEScrCmd_setmsg
+	.4byte MEScrCmd_setstatus
+	.4byte MEScrCmd_runscript
+	.4byte MEScrCmd_initramscript
+	.4byte MEScrCmd_setenigmaberry
+	.4byte MEScrCmd_giveribbon
+	.4byte MEScrCmd_givenationaldex
+	.4byte MEScrCmd_addrareword
+	.4byte MEScrCmd_setrecordmixinggift
+	.4byte MEScrCmd_givepokemon
+	.4byte MEScrCmd_addtrainer
+	.4byte MEScrCmd_enableresetrtc
+	.4byte MEScrCmd_checksum
+	.4byte MEScrCmd_crc
+gMysteryEventScriptCmdTableEnd::
diff --git a/data/mystery_event_msg.s b/data/mystery_event_scripts.s
index e5525477d..ea94c671e 100644
--- a/data/mystery_event_msg.s
+++ b/data/mystery_event_scripts.s
@@ -1,41 +1,17 @@
+#include "constants/flags.h"
+#include "constants/items.h"
+#include "constants/moves.h"
+#include "constants/songs.h"
+#include "constants/species.h"
+#include "constants/vars.h"
 	.include "asm/macros.inc"
+	.include "asm/macros/event.inc"
 	.include "constants/constants.inc"
 
 	.section .rodata
 
-gText_MysteryGiftBerry:: @ 8674AE4
-	.string "Obtained a {STR_VAR_2} BERRY!\nDad has it at PETALBURG GYM.$"
-
-gText_MysteryGiftBerryTransform:: @ 8674B16
-	.string "The {STR_VAR_1} BERRY transformed into\none {STR_VAR_2} BERRY.$"
-
-gText_MysteryGiftBerryObtained:: @ 8674B42
-	.string "The {STR_VAR_1} BERRY has already been\nobtained.$"
-
-gText_MysteryGiftSpecialRibbon:: @ 8674B6A
-	.string "A special RIBBON was awarded to\nyour party POKéMON.$"
-
-gText_MysteryGiftNationalDex:: @ 8674B9E
-	.string "The POKéDEX has been upgraded\nwith the NATIONAL MODE.$"
-
-gText_MysteryGiftRareWord:: @ 8674BD4
-	.string "A rare word has been added.$"
-
-gText_MysteryGiftSentOver:: @ 8674BF0
-	.string "{STR_VAR_1} was sent over!$"
-
-gText_MysteryGiftFullParty:: @ 8674C02
-	.string "Your party is full.\n{STR_VAR_1} could not be sent over.$"
-
-gText_MysteryGiftNewTrainer:: @ 8674C31
-	.string "A new TRAINER has arrived in\nHOENN.$"
-	.string "A new adversary has arrived in the\nBATTLE TOWER.$"
-
-gText_MysteryGiftCantBeUsed:: @ 8674C86
-	.string "This data can’t be used in\nthis version.$"
-	
-gUnknown_08674CAF:: @ 8674CAF
-	.incbin "baserom.gba", 0x00674caf, 0x2e
+gUnknown_08674CB0:: @ 8674CB0
+	.incbin "baserom.gba", 0x00674cb0, 0x2d
 
 gText_MysteryGiftStampCard::
 	.string "Thank you for using the STAMP CARD\nSystem.\pYou have {STR_VAR_1} more to collect to\nfill your STAMP CARD.$"
diff --git a/data/script_funcs.s b/data/script_funcs.s
deleted file mode 100644
index 276807fa5..000000000
--- a/data/script_funcs.s
+++ /dev/null
@@ -1,21 +0,0 @@
-	.section script_data, "aw", %progbits
-
-	.align 2
-gUnknown_082DED2C:: @ 82DED2C
-	.4byte sub_8153A80
-	.4byte sub_8153A30
-	.4byte script_status_stop_and_ret_1
-	.4byte sub_8153A94
-	.4byte sub_8153A84
-	.4byte sub_8153ACC
-	.4byte sub_8153BE4
-	.4byte sub_8153AE8
-	.4byte sub_8153BB0
-	.4byte sub_8153C4C
-	.4byte sub_8153C70
-	.4byte sub_8153C9C
-	.4byte sub_8153CC8
-	.4byte sub_8153DD4
-	.4byte sub_8153E1C
-	.4byte sub_8153E40
-	.4byte sub_8153E88
diff --git a/data/scripts/maps/PetalburgCity_Gym.inc b/data/scripts/maps/PetalburgCity_Gym.inc
index 060531c97..627ae904c 100644
--- a/data/scripts/maps/PetalburgCity_Gym.inc
+++ b/data/scripts/maps/PetalburgCity_Gym.inc
@@ -393,7 +393,7 @@ PetalburgCity_Gym_EventScript_204DCE:: @ 8204DCE
 	checkpcitem ITEM_ENIGMA_BERRY, 1
 	compare VAR_RESULT, 1
 	goto_eq PetalburgCity_Gym_EventScript_204E17
-	compare VAR_0x402D, 0
+	compare VAR_ENIGMA_BERRY_AVAILABLE, 0
 	goto_eq PetalburgCity_Gym_EventScript_204E17
 	msgbox PetalburgCity_Gym_Text_2A6D3D, 4
 	setvar VAR_RESULT, 1
@@ -407,7 +407,7 @@ PetalburgCity_Gym_EventScript_204E1D:: @ 8204E1D
 	giveitem_std ITEM_ENIGMA_BERRY
 	compare VAR_RESULT, 0
 	goto_eq PetalburgCity_Gym_EventScript_272054
-	setvar VAR_0x402D, 0
+	setvar VAR_ENIGMA_BERRY_AVAILABLE, 0
 	release
 	end
 
diff --git a/data/specials.inc b/data/specials.inc
index f0c1fa114..03964c8eb 100644
--- a/data/specials.inc
+++ b/data/specials.inc
@@ -256,7 +256,7 @@ gSpecials:: @ 81DBA64
 	def_special sub_81B9B80
 	def_special sub_81B9D08
 	def_special sub_80F9490
-	def_special sub_81652B4
+	def_special ValidateEReaderTrainer
 	def_special sub_8139228
 	def_special sub_80F94E8
 	def_special sub_816AE58
diff --git a/include/constants/vars.h b/include/constants/vars.h
index b8bd46a96..8a07c5d19 100644
--- a/include/constants/vars.h
+++ b/include/constants/vars.h
@@ -48,7 +48,7 @@
 #define VAR_HAPPINESS_STEP_COUNTER 0x402A
 #define VAR_POISON_STEP_COUNTER    0x402B
 #define VAR_RESET_RTC_ENABLE       0x402C
-#define VAR_0x402D                 0x402D
+#define VAR_ENIGMA_BERRY_AVAILABLE 0x402D
 #define VAR_0x402E                 0x402E
 
 #define VAR_FRONTIER_MANIAC_FACILITY        0x402F
diff --git a/include/mystery_event_msg.h b/include/mystery_event_msg.h
new file mode 100644
index 000000000..465b60ccb
--- /dev/null
+++ b/include/mystery_event_msg.h
@@ -0,0 +1,16 @@
+#ifndef GUARD_MYSTERY_EVENT_MSG_H
+#define GUARD_MYSTERY_EVENT_MSG_H
+
+extern const u8 gText_MysteryGiftBerry[];
+extern const u8 gText_MysteryGiftBerryTransform[];
+extern const u8 gText_MysteryGiftBerryObtained[];
+extern const u8 gText_MysteryGiftSpecialRibbon[];
+extern const u8 gText_MysteryGiftNationalDex[];
+extern const u8 gText_MysteryGiftRareWord[];
+extern const u8 gText_MysteryGiftSentOver[];
+extern const u8 gText_MysteryGiftFullParty[];
+extern const u8 gText_MysteryGiftNewTrainer[];
+extern const u8 gText_MysteryGiftNewAdversaryInBattleTower[];
+extern const u8 gText_MysteryGiftCantBeUsed[];
+
+#endif // GUARD_MYSTERY_EVENT_MSG_H
diff --git a/include/mystery_event_script.h b/include/mystery_event_script.h
index ab23a8d00..991cab53a 100644
--- a/include/mystery_event_script.h
+++ b/include/mystery_event_script.h
@@ -1,7 +1,9 @@
 #ifndef GUARD_MYSTERY_EVENT_SCRIPT_H
 #define GUARD_MYSTERY_EVENT_SCRIPT_H
 
-u32 RunMysteryEventScript(u8 *);
+void sub_8153870(u8 *script);
+bool32 sub_8153884(u32 *a0);
+u32 RunMysteryEventScript(u8 *script);
 void SetMysteryEventScriptStatus(u32 val);
 u16 GetRecordMixingGift(void);
 
diff --git a/include/strings.h b/include/strings.h
index a382191a0..66fbc9b11 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -148,6 +148,10 @@ extern const u8 gText_MoveItemsDescription[];
 extern const u8 gText_SeeYa[];
 extern const u8 gText_SeeYaDescription[];
 
+extern const u8 gText_EggNickname[];
+extern const u8 gText_Pokemon[];
+extern const u8 gText_InGameClockUsable[];
+
 // menu texts
 extern const u8 gText_MenuPokedex[];
 extern const u8 gText_MenuPokemon[];
diff --git a/ld_script.txt b/ld_script.txt
index 68365e252..ec82a2b55 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -205,7 +205,7 @@ SECTIONS {
         asm/roulette_util.o(.text);
         asm/cable_car_util.o(.text);
         src/save.o(.text);
-        asm/mystery_event_script.o(.text);
+        src/mystery_event_script.o(.text);
         asm/field_effect_helpers.o(.text);
         asm/contest_ai.o(.text);
         asm/battle_anim_sound_tasks.o(.text);
@@ -289,7 +289,7 @@ SECTIONS {
         data/battle_scripts_2.o(script_data);
         data/battle_ai_scripts.o(script_data);
         data/contest_ai_scripts.o(script_data);
-        data/script_funcs.o(script_data);
+        data/mystery_event_script_cmd_table.o(script_data);
     } =0
 
     lib_text :
@@ -543,7 +543,8 @@ SECTIONS {
         data/unk_transition.o(.rodata);
         data/link_strings.o(.rodata);
         data/fonts.o(.rodata);
-        data/mystery_event_msg.o(.rodata);
+        src/mystery_event_msg.o(.rodata);
+        data/mystery_event_scripts.o(.rodata);
         src/m4a_tables.o(.rodata);
         data/sound_data.o(.rodata);
     } =0
diff --git a/src/mystery_event_msg.c b/src/mystery_event_msg.c
new file mode 100644
index 000000000..74261179b
--- /dev/null
+++ b/src/mystery_event_msg.c
@@ -0,0 +1,13 @@
+#include "global.h"
+
+const u8 gText_MysteryGiftBerry[] = _("Obtained a {STR_VAR_2} BERRY!\nDad has it at PETALBURG GYM.");
+const u8 gText_MysteryGiftBerryTransform[] = _("The {STR_VAR_1} BERRY transformed into\none {STR_VAR_2} BERRY.");
+const u8 gText_MysteryGiftBerryObtained[] = _("The {STR_VAR_1} BERRY has already been\nobtained.");
+const u8 gText_MysteryGiftSpecialRibbon[] = _("A special RIBBON was awarded to\nyour party POKéMON.");
+const u8 gText_MysteryGiftNationalDex[] = _("The POKéDEX has been upgraded\nwith the NATIONAL MODE.");
+const u8 gText_MysteryGiftRareWord[] = _("A rare word has been added.");
+const u8 gText_MysteryGiftSentOver[] = _("{STR_VAR_1} was sent over!");
+const u8 gText_MysteryGiftFullParty[] = _("Your party is full.\n{STR_VAR_1} could not be sent over.");
+const u8 gText_MysteryGiftNewTrainer[] = _("A new TRAINER has arrived in\nHOENN.");
+const u8 gText_MysteryGiftNewAdversaryInBattleTower[] = _("A new adversary has arrived in the\nBATTLE TOWER.");
+const u8 gText_MysteryGiftCantBeUsed[] = _("This data can’t be used in\nthis version.");
diff --git a/src/mystery_event_script.c b/src/mystery_event_script.c
new file mode 100644
index 000000000..d64c2c69e
--- /dev/null
+++ b/src/mystery_event_script.c
@@ -0,0 +1,396 @@
+#include "global.h"
+#include "berry.h"
+#include "battle_tower.h"
+#include "easy_chat.h"
+#include "event_data.h"
+#include "mail.h"
+#include "mystery_event_script.h"
+#include "pokedex.h"
+#include "pokemon.h"
+#include "pokemon_size_record.h"
+#include "script.h"
+#include "constants/species.h"
+#include "strings.h"
+#include "string_util.h"
+#include "text.h"
+#include "util.h"
+#include "mystery_event_msg.h"
+#include "pokemon_storage_system.h"
+
+extern void sub_811EFC0(u8);
+extern void ValidateEReaderTrainer(void);
+
+extern ScrCmdFunc gMysteryEventScriptCmdTable[];
+extern ScrCmdFunc gMysteryEventScriptCmdTableEnd[];
+
+#define LANGUAGE_MASK 0x1
+#define VERSION_MASK 0x200
+
+EWRAM_DATA struct ScriptContext sMysteryEventScriptContext = {0};
+
+static bool32 CheckCompatibility(u16 a1, u32 a2, u16 a3, u32 a4)
+{
+    if (!(a1 & LANGUAGE_MASK))
+        return FALSE;
+
+    if (!(a2 & LANGUAGE_MASK))
+        return FALSE;
+
+    if (!(a3 & 0x4))
+        return FALSE;
+
+    if (!(a4 & VERSION_MASK))
+        return FALSE;
+
+    return TRUE;
+}
+
+static void SetIncompatible(void)
+{
+    StringExpandPlaceholders(gStringVar4, gText_MysteryGiftCantBeUsed);
+    SetMysteryEventScriptStatus(3);
+}
+
+static void InitMysteryEventScript(struct ScriptContext *ctx, u8 *script)
+{
+    InitScriptContext(ctx, gMysteryEventScriptCmdTable, gMysteryEventScriptCmdTableEnd);
+    SetupBytecodeScript(ctx, script);
+    ctx->data[0] = (u32)script;
+    ctx->data[1] = 0;
+    ctx->data[2] = 0;
+    ctx->data[3] = 0;
+}
+
+static bool32 RunMysteryEventScriptCommand(struct ScriptContext *ctx)
+{
+    if (RunScriptCommand(ctx) && ctx->data[3])
+        return TRUE;
+    else
+        return FALSE;
+}
+
+void sub_8153870(u8 *script)
+{
+    InitMysteryEventScript(&sMysteryEventScriptContext, script);
+}
+
+bool32 sub_8153884(u32 *a0)
+{
+    bool32 ret = RunMysteryEventScriptCommand(&sMysteryEventScriptContext);
+    *a0 = sMysteryEventScriptContext.data[2];
+
+    return ret;
+}
+
+u32 RunMysteryEventScript(u8 *script)
+{
+    struct ScriptContext *ctx = &sMysteryEventScriptContext;
+    InitMysteryEventScript(ctx, script);
+    while (RunMysteryEventScriptCommand(ctx))
+        ;
+    return ctx->data[2];
+}
+
+void SetMysteryEventScriptStatus(u32 val)
+{
+    sMysteryEventScriptContext.data[2] = val;
+}
+
+static int CalcRecordMixingGiftChecksum(void)
+{
+    unsigned int i;
+    int sum = 0;
+    u8 *data = (u8*)(&gSaveBlock1Ptr->recordMixingGift.data);
+
+    for (i = 0; i < sizeof(gSaveBlock1Ptr->recordMixingGift.data); i++)
+        sum += data[i];
+
+    return sum;
+}
+
+static bool32 IsRecordMixingGiftValid(void)
+{
+    struct RecordMixingGiftData *data = &gSaveBlock1Ptr->recordMixingGift.data;
+    int checksum = CalcRecordMixingGiftChecksum();
+
+    if (data->unk0 == 0
+        || data->quantity == 0
+        || data->itemId == 0
+        || checksum == 0
+        || checksum != gSaveBlock1Ptr->recordMixingGift.checksum)
+        return FALSE;
+    else
+        return TRUE;
+}
+
+static void ClearRecordMixingGift(void)
+{
+    CpuFill16(0, &gSaveBlock1Ptr->recordMixingGift, sizeof(gSaveBlock1Ptr->recordMixingGift));
+}
+
+static void SetRecordMixingGift(u8 unk, u8 quantity, u16 itemId)
+{
+    if (!unk || !quantity || !itemId)
+    {
+        ClearRecordMixingGift();
+    }
+    else
+    {
+        gSaveBlock1Ptr->recordMixingGift.data.unk0 = unk;
+        gSaveBlock1Ptr->recordMixingGift.data.quantity = quantity;
+        gSaveBlock1Ptr->recordMixingGift.data.itemId = itemId;
+        gSaveBlock1Ptr->recordMixingGift.checksum = CalcRecordMixingGiftChecksum();
+    }
+}
+
+u16 GetRecordMixingGift(void)
+{
+    struct RecordMixingGiftData *data = &gSaveBlock1Ptr->recordMixingGift.data;
+
+    if (!IsRecordMixingGiftValid())
+    {
+        ClearRecordMixingGift();
+        return 0;
+    }
+    else
+    {
+        u16 itemId = data->itemId;
+        data->quantity--;
+        if (data->quantity == 0)
+            ClearRecordMixingGift();
+        else
+            gSaveBlock1Ptr->recordMixingGift.checksum = CalcRecordMixingGiftChecksum();
+
+        return itemId;
+    }
+}
+
+bool8 MEScrCmd_end(struct ScriptContext *ctx)
+{
+    StopScript(ctx);
+    return TRUE;
+}
+
+bool8 MEScrCmd_checkcompat(struct ScriptContext *ctx)
+{
+    u16 v1;
+    u32 v2;
+    u16 v3;
+    u32 v4;
+
+    ctx->data[1] = ScriptReadWord(ctx);
+    v1 = ScriptReadHalfword(ctx);
+    v2 = ScriptReadWord(ctx);
+    v3 = ScriptReadHalfword(ctx);
+    v4 = ScriptReadWord(ctx);
+
+    if (CheckCompatibility(v1, v2, v3, v4) == TRUE)
+        ctx->data[3] = 1;
+    else
+        SetIncompatible();
+
+    return TRUE;
+}
+
+bool8 MEScrCmd_nop(struct ScriptContext *ctx)
+{
+    return FALSE;
+}
+
+bool8 MEScrCmd_setstatus(struct ScriptContext *ctx)
+{
+    u8 value = ScriptReadByte(ctx);
+    ctx->data[2] = value;
+    return FALSE;
+}
+
+bool8 MEScrCmd_setmsg(struct ScriptContext *ctx)
+{
+    u8 value = ScriptReadByte(ctx);
+    u8 *str = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    if (value == 255 || value == ctx->data[2])
+        StringExpandPlaceholders(gStringVar4, str);
+    return FALSE;
+}
+
+bool8 MEScrCmd_runscript(struct ScriptContext *ctx)
+{
+    u8 *script = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    ScriptContext2_RunNewScript(script);
+    return FALSE;
+}
+
+bool8 MEScrCmd_setenigmaberry(struct ScriptContext *ctx)
+{
+    u8 *str;
+    const u8 *message;
+    bool32 haveBerry = IsEnigmaBerryValid();
+    u8 *berry = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    StringCopyN(gStringVar1, gSaveBlock1Ptr->enigmaBerry.berry.name, BERRY_NAME_COUNT);
+    SetEnigmaBerry(berry);
+    StringCopyN(gStringVar2, gSaveBlock1Ptr->enigmaBerry.berry.name, BERRY_NAME_COUNT);
+
+    if (!haveBerry)
+    {
+        str = gStringVar4;
+        message = gText_MysteryGiftBerry;
+    }
+    else if (StringCompare(gStringVar1, gStringVar2))
+    {
+        str = gStringVar4;
+        message = gText_MysteryGiftBerryTransform;
+    }
+    else
+    {
+        str = gStringVar4;
+        message = gText_MysteryGiftBerryObtained;
+    }
+
+    StringExpandPlaceholders(str, message);
+
+    ctx->data[2] = 2;
+
+    if (IsEnigmaBerryValid() == TRUE)
+        VarSet(VAR_ENIGMA_BERRY_AVAILABLE, 1);
+    else
+        ctx->data[2] = 1;
+
+    return FALSE;
+}
+
+bool8 MEScrCmd_giveribbon(struct ScriptContext *ctx)
+{
+    u8 index = ScriptReadByte(ctx);
+    u8 ribbonId = ScriptReadByte(ctx);
+    GiveGiftRibbonToParty(index, ribbonId);
+    StringExpandPlaceholders(gStringVar4, gText_MysteryGiftSpecialRibbon);
+    ctx->data[2] = 2;
+    return FALSE;
+}
+
+bool8 MEScrCmd_initramscript(struct ScriptContext *ctx)
+{
+    u8 mapGroup = ScriptReadByte(ctx);
+    u8 mapNum = ScriptReadByte(ctx);
+    u8 objectId = ScriptReadByte(ctx);
+    u8 *script = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    u8 *scriptEnd = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    InitRamScript(script, scriptEnd - script, mapGroup, mapNum, objectId);
+    return FALSE;
+}
+
+bool8 MEScrCmd_givenationaldex(struct ScriptContext *ctx)
+{
+    EnableNationalPokedex();
+    StringExpandPlaceholders(gStringVar4, gText_MysteryGiftNationalDex);
+    ctx->data[2] = 2;
+    return FALSE;
+}
+
+bool8 MEScrCmd_addrareword(struct ScriptContext *ctx)
+{
+    sub_811EFC0(ScriptReadByte(ctx));
+    StringExpandPlaceholders(gStringVar4, gText_MysteryGiftRareWord);
+    ctx->data[2] = 2;
+    return FALSE;
+}
+
+bool8 MEScrCmd_setrecordmixinggift(struct ScriptContext *ctx)
+{
+    u8 unk = ScriptReadByte(ctx);
+    u8 quantity = ScriptReadByte(ctx);
+    u16 itemId = ScriptReadHalfword(ctx);
+    SetRecordMixingGift(unk, quantity, itemId);
+    return FALSE;
+}
+
+bool8 MEScrCmd_givepokemon(struct ScriptContext *ctx)
+{
+    struct MailStruct mail;
+    struct Pokemon pokemon;
+    u16 species;
+    u16 heldItem;
+    u32 data = ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0];
+    void *pokemonPtr = (void *)data;
+    void *mailPtr = (void *)(data + sizeof(struct Pokemon));
+
+    pokemon = *(struct Pokemon *)pokemonPtr;
+    species = GetMonData(&pokemon, MON_DATA_SPECIES2);
+
+    if (species == SPECIES_EGG)
+        StringCopyN(gStringVar1, gText_EggNickname, POKEMON_NAME_LENGTH + 1);
+    else
+        StringCopyN(gStringVar1, gText_Pokemon, POKEMON_NAME_LENGTH + 1);
+
+    if (gPlayerPartyCount == PARTY_SIZE)
+    {
+        StringExpandPlaceholders(gStringVar4, gText_MysteryGiftFullParty);
+        ctx->data[2] = 3;
+    }
+    else
+    {
+        memcpy(&gPlayerParty[5], pokemonPtr, sizeof(struct Pokemon));
+        memcpy(&mail, mailPtr, sizeof(struct MailStruct));
+
+        if (species != SPECIES_EGG)
+        {
+            u16 pokedexNum = SpeciesToNationalPokedexNum(species);
+            GetSetPokedexFlag(pokedexNum, FLAG_SET_SEEN);
+            GetSetPokedexFlag(pokedexNum, FLAG_SET_CAUGHT);
+        }
+
+        heldItem = GetMonData(&gPlayerParty[5], MON_DATA_HELD_ITEM);
+        if (ItemIsMail(heldItem))
+            GiveMailToMon2(&gPlayerParty[5], &mail);
+        CompactPartySlots();
+        CalculatePlayerPartyCount();
+        StringExpandPlaceholders(gStringVar4, gText_MysteryGiftSentOver);
+        ctx->data[2] = 2;
+    }
+
+    return FALSE;
+}
+
+bool8 MEScrCmd_addtrainer(struct ScriptContext *ctx)
+{
+    u32 data = ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0];
+    memcpy((void*)(gSaveBlock2Ptr) + 0xBEC, (void *)data, 0xBC);
+    ValidateEReaderTrainer();
+    StringExpandPlaceholders(gStringVar4, gText_MysteryGiftNewTrainer);
+    ctx->data[2] = 2;
+    return FALSE;
+}
+
+bool8 MEScrCmd_enableresetrtc(struct ScriptContext *ctx)
+{
+    EnableResetRTC();
+    StringExpandPlaceholders(gStringVar4, gText_InGameClockUsable);
+    ctx->data[2] = 2;
+    return FALSE;
+}
+
+bool8 MEScrCmd_checksum(struct ScriptContext *ctx)
+{
+    int checksum = ScriptReadWord(ctx);
+    u8 *data = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    u8 *dataEnd = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    if (checksum != CalcByteArraySum(data, dataEnd - data))
+    {
+        ctx->data[3] = 0;
+        ctx->data[2] = 1;
+    }
+    return TRUE;
+}
+
+bool8 MEScrCmd_crc(struct ScriptContext *ctx)
+{
+    int crc = ScriptReadWord(ctx);
+    u8 *data = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    u8 *dataEnd = (u8 *)(ScriptReadWord(ctx) - ctx->data[1] + ctx->data[0]);
+    if (crc != CalcCRC16(data, dataEnd - data))
+    {
+        ctx->data[3] = 0;
+        ctx->data[2] = 1;
+    }
+    return TRUE;
+}
diff --git a/sym_ewram.txt b/sym_ewram.txt
index d328d8864..d5f72474f 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -1229,8 +1229,7 @@ gUnknown_0203ABB8: @ 203ABB8
     
 .space 0x4 /*unused var?*/
 
-gUnknown_0203BBC0: @ 203BBC0
-	.space 0x74
+	.include "src/mystery_event_script.o"
 
 gUnknown_0203BC34: @ 203BC34
 	.space 0x4