Hidden Messages in Videogames ~ Super Game Boy 1 / 2 BIOS SFC
1BIOS strings for both the Multitap and SNES Mouse are found in the Super Game Boy 1 and 2 BIOS. Multitap support for up-to four players is possible in specific Super Game Boy supported games such as Wario Blast: Featuring Bomberman!, Bomberman GB, Battle Arena Toshinden, Rock'n! Monster!!, Picross 2, Street Fighter 2, Killer Instinct, Nekketsu Beach Volley, Hexcite The Shapes of Victory, are notably suitable for multiple players on the same screen and where controllers can be reasonably alternated between players. Only controllers 1 and 2 are able to access the system menu, as well as the SNES Mouse for navigation and drawing graffiti. Additionally, the second player controls both the system menu and the game simultaneously in two-player mode.
Game Boy Internal Filenames
Starting at 0x3F000 is a list of internal filenames used to detect specific games published or developed by Nintendo prior to 1994 and applies a single predefined palette out of the 32 defaults. Assume all regional and revision versions display the same palette unless the game was released under a different name for a particular region (i.e. Mario & Yoshi, Yossy no Tamago, and Yoshi are the same game with different names depending on region). Oddly, Radar Mission has no specified palette.
Internal Filename Title Palette
ZELDA The Legend of Zelda: Link's Awakening 1-E
SUPER MARIOLAND Super Mario Land 1-F
MARIOLAND2 Super Mario Land 2: 6 Golden Coins 3-D
SUPERMARIOLAND3 Wario Land: Super Mario Land 3 1-B
KIRBY DREAM LAND
HOSHINOKA-BI Kirby's Dream Land
Hoshi no Kirby 2-C
KIRBY'S PINBALL Kirby's Pinball Land 1-C
YOSSY NO TAMAGO
MARIO & YOSHI Yossy no Tamago
Yoshi 2-D
YOSSY NO COOKIE
YOSHI'S COOKIE Yossy no Cookie
Yoshi's Cookie 1-D
DR.MARIO Dr. Mario 3-B
TETRIS Tetris 3-A
YAKUMAN Yakuman 3-C
METROID2 Metroid II: Return of Samus 4-G
KAERUNOTAMENI Kaeru no Tame ni Kane wa Naru 2-A
GOLF Golf 3-H
ALLEY WAY Alleyway 3-F
BASEBALL Baseball 2-G
TENNIS Tennis 3-G
F1RACE F-1 Race 4-F
KID ICARUS Kid Icarus: Of Myths and Monsters 2-F
BALL..N KID Balloon Kid 1-A (default)
QIX Qix 4-A
SOLARSTRIKER SolarStriker 1-G
X X 4-D
GBWARS Game Boy Wars 3-E
Balloon Kid (appears as BALL..N KID in the Super Game Boy ROM text, yet is named BALLOON KID in the Game Boy ROM header) uses the default palette. Most likely, Nintendo wanted to acknowledge the game but couldn't find a suitable palette or were too lazy to create a new palette.
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