Sonic Roms Guide
Title Screen Yellow Desert Red Volcano Silver Castle

Sonic Blast may have been a dumb idea (them 3D graphics be on the Game Gear), and the level designs are definitely too basic for their own good, but at least it's a solid platformer that teaches Knuckles he can't evade Game Gear duty simply by doing obscure cameo appearances. I guess it doesn't look that bad in light of, say, Shenmue (no, wait). If Triple Trouble wasn't enough for you, this should be. If this isn't enough for you, you're a sad, sad person.

Rom Variations

Sonic Blast (International) (1996)
Sega of America apparently felt that Blast would be a good title alongside "3D Blast" for the Genesis, but stuck Japan with the odd epithet "G Sonic" (almost interestingly, "Sonic Blast" was originally proposed as a name for the ill fated Sonic Xtreme experiment). The only adjustment you'll find when you run the rom in English mode is the title screen, which says "Down with Japan!" Uh, I mean "Sonic Blast."