Urban Strike (Game Boy)

Unused Super Game Boy Functions
More features were planned including a useless screen masking command. There is also an additional command that requests joypad registers after the initial one is set, so it is possible two player mode was planned very early on in some form.

SOUND
Game Genie codes will play an unused Explosion sound shortly after booting, replacing the PAL_01 command. This may have have been used for testing, as it appears in the general command table, and is the only sound that exists.

MASK_EN
An unused Mask_EN with an arguement of is listed. Game Genie code will set the bit of  to.

PAL_PRI
Additional palettes may have been planned. Game Genie codes will replace PAL09 with an unused PAL_PRI command. This appears in the general listing where the MLT_REQ (multiplayer request) commands are located. However the bit is set to and it is never loaded. Presence of the command might suggest that additional palettes were planned.