Games with Unused Super Game Boy SOUND Programming ~ Mario's Picross In-Game SGB SE Table Selector

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nensondubois

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Published on September 19, 2017 4:49:01 AM ● Video Link: https://www.youtube.com/watch?v=jaeQWviWq68

Game:

Mario's Picross (1995)

Duration: 11:23

385 views

6

Interesting. Mario's Picross can load SGB SOUND functions when changing songs in-game. The game was programmed to stop normal DMG music in order to play a SGB Song SOUND 41000000?? command. Unfortunately this and the single instance of 4100000000 loaded upon booting the game are the only leftover programming. I also think normal GB SFX 02 is unused. The game will load a SGB SE B corresponding to the internal game's ID value and SGB SOUND SE B will play if using the additional "GB BGM / SGB SOUND in-game song table modifier". The code to disable DMG BGM exists in Picross 2, unfortunately the SGB SOUND routine was removed completely. Similarly it is also possible to play DMG SE by selecting which mode to load. Every single sound effect is referenced by DMG SE table with a setting of 02 and can be chnged to 03 for SGB SOUND though they may be inappropriately suited.

1 08 SOUND 41.00.05.76 6D.00.00.00 00.00.00.00 00.00.00.00
1 08 SOUND 41.00.01.76 6D.00.00.00 00.00.00.00 00.00.00.00
1 08 SOUND 41.00.0B.76 6D.00.00.00 00.00.00.00 00.00.00.00
1 08 SOUND 41.00.03.76 6D.00.00.00 00.00.00.00 00.00.00.00
1 08 SOUND 41.00.02.76 6D.00.00.00 00.00.00.00 00.00.00.00

Mario's Picross (USA, Europe) (SGB Enhanced).gb
Code:

Enable unused Super Game Boy SOUND programming in-game
037-01B-E6E

Game Boy SE table in-game
027-01B-E6E

GB BGM / SGB SOUND in-game song table modifier
??6-F0B-E6A

In-game BGM music modifier (With SGB SOUND)
037-01B-E6E
??7-01B-E6E

In-game BGM music modifier (Without SGB SOUND)
077-01B-E6E
??6-F6B-E6A

DMG Music
01 - Puzzle themes and game over jingles
02 - BGM 5
03 - BGM 4
04 - Select a Problem
05 - BGM 1
06 - Unknown
07 - Puzzle Complete Jingle
08 - Game Over
09 - Puzzle Complete Song
0A - Title screen
0B - BGM 3
0C - Unknown Jingle
0D - Select A Data / Menus
0E - Picross Menu
0F - Time Trial Menu
10 - Star Picross Select A Problem
11 - Unknown Jingle 2
12 - Puzzle Complete Intro
13 - Puzzle Complete Outro

DMG Sound Effects
02 - Unused

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