Sonic Blast (Sega Master System)

Sonic Blast
Developers: Aspect, Tec Toy Publisher: Tec Toy Platform: Sega Master System Released in BR: December 1997 This game has unused code. This game has hidden development-related text. This game has unused music. This game has a hidden level select. This game has a bugs page

Released exclusively for the Brazilian market, the Master System's Sonic Blast is a bad port of what's already considered one of the worst Sonic games ever. That can't be good.

Although the screen crunch issue in the levels has been somewhat resolved, it still manages to be a worse package overall thanks to a general lack of effort in optimizing the game for the new hardware.

Sub-Pages

Bugs

Level Select

Set address D140 to FF at the title screen, then start the game. The Game Gear version's button code is unusable here due to 1 serving the same function as Start (starting the game and pausing).

Error Handler

Unsurprisingly, the Master System version contains the same generic error handler as its Game Gear counterpart. The code is identical and just as unlikely to ever actually run.

Partially-Unused Music

The music used for the opening cutscene lasts 31 seconds, but only the first 6 seconds are heard in-game. Use PAR code 00D131:01 when booting to freeze the game so as to let the song play out in its entirety.

Unused Text

A leftover build date from the Game Gear version is present at 0xC0:

GG SONIC 96     
      Ver E3 ROM
1996/05/01 @SEGA
/Aspect Co.,Ltd