Disassemble the BLUEMONS.GB debug ROM

engine/debug/debug_party.asm

@@ -1,5 +1,4 @@
-; This function appears to never be used.
-; It is likely a debugging feature to give the player Tsunekazu Ishihara's
+; This function is a debugging feature to give the player Tsunekazu Ishihara's
 ; favorite Pokemon. This is indicated by the overpowered Exeggutor, which
 ; Ishihara (president of Creatures Inc.) said was his favorite Pokemon in an ABC
 ; interview on February 8, 2000.
@@ -11,7 +10,7 @@ SetIshiharaTeam:
 	ld de, IshiharaTeam
 .loop
 	ld a, [de]
-	cp $ff
+	cp -1
 	ret z
 	ld [wcf91], a
 	inc de
@@ -22,12 +21,139 @@ SetIshiharaTeam:
 	jr .loop
 
 IshiharaTeam:
-	db EXEGGUTOR,90
-	db MEW,20
-	db JOLTEON,56
-	db DUGTRIO,56
-	db ARTICUNO,57
-	db $FF
+	db EXEGGUTOR, 90
+IF DEF(_DEBUG)
+	db MEW, 5
+ELSE
+	db MEW, 20
+ENDC
+	db JOLTEON, 56
+	db DUGTRIO, 56
+	db ARTICUNO, 57
+IF DEF(_DEBUG)
+	db PIKACHU, 5
+ENDC
+	db -1 ; end
+
+DebugStart:
+IF DEF(_DEBUG)
+	xor a ; PLAYER_PARTY_DATA
+	ld [wMonDataLocation], a
+
+	; Fly anywhere.
+	dec a ; $ff
+	ld [wTownVisitedFlag], a
+	ld [wTownVisitedFlag + 1], a
+
+	; Get all badges except Earth Badge.
+	ld a, $ff ^ (1 << BIT_EARTHBADGE)
+	ld [wObtainedBadges], a
+
+	call SetIshiharaTeam
+
+	; Exeggutor gets four HM moves.
+	ld hl, wPartyMon1Moves
+	ld a, FLY
+	ld [hli], a
+	ld a, CUT
+	ld [hli], a
+	ld a, SURF
+	ld [hli], a
+	ld a, STRENGTH
+	ld [hl], a
+	ld hl, wPartyMon1PP
+	ld a, 15
+	ld [hli], a
+	ld a, 30
+	ld [hli], a
+	ld a, 15
+	ld [hli], a
+	ld [hl], a
+
+	; Jolteon gets Thunderbolt.
+	ld hl, wPartyMon3Moves + 3
+	ld a, THUNDERBOLT
+	ld [hl], a
+	ld hl, wPartyMon3PP + 3
+	ld a, 15
+	ld [hl], a
+
+	; Articuno gets Fly.
+	ld hl, wPartyMon5Moves
+	ld a, FLY
+	ld [hl], a
+	ld hl, wPartyMon5PP
+	ld a, 15
+	ld [hl], a
+
+	; Pikachu gets Surf.
+	ld hl, wPartyMon6Moves + 2
+	ld a, SURF
+	ld [hl], a
+	ld hl, wPartyMon6PP + 2
+	ld a, 15
+	ld [hl], a
+
+	; Get some debug items.
+	ld hl, wNumBagItems
+	ld de, DebugItemsList
+.items_loop
+	ld a, [de]
+	cp -1
+	jr z, .items_end
+	ld [wcf91], a
+	inc de
+	ld a, [de]
+	inc de
+	ld [wItemQuantity], a
+	call AddItemToInventory
+	jr .items_loop
+.items_end
+
+	; Complete the Pokédex.
+	ld hl, wPokedexOwned
+	call DebugSetPokedexEntries
+	ld hl, wPokedexSeen
+	call DebugSetPokedexEntries
+	SetEvent EVENT_GOT_POKEDEX
+
+	; Rival chose Squirtle,
+	; Player chose Charmander.
+	ld hl, wRivalStarter
+	ld a, STARTER2
+	ld [hli], a
+	inc hl ; hl = wPlayerStarter
+	ld a, STARTER1
+	ld [hl], a
 
-EmptyFunc:
 	ret
+
+DebugSetPokedexEntries:
+	ld b, wPokedexOwnedEnd - wPokedexOwned - 1
+	ld a, %11111111
+.loop
+	ld [hli], a
+	dec b
+	jr nz, .loop
+	ld [hl], %01111111
+	ret
+
+DebugItemsList:
+	db BICYCLE, 1
+	db FULL_RESTORE, 99
+	db FULL_HEAL, 99
+	db ESCAPE_ROPE, 99
+	db RARE_CANDY, 99
+	db MASTER_BALL, 99
+	db TOWN_MAP, 1
+	db SECRET_KEY, 1
+	db CARD_KEY, 1
+	db S_S_TICKET, 1
+	db LIFT_KEY, 1
+	db -1 ; end
+
+DebugUnusedList:
+	db -1 ; end
+ELSE
+	ret
+ENDC