I can't remember the platform but remember it was early to mid 90s and the game was a side scrolling set-up like double dragon and the main character was a long-haired rocker or a biker and he burped as a weapon. There might have been a guitar used as a weapon too but I'm not sure. I just have this particular memory of seeing this game being played at a friend's house when I was a kid. One of those game memories I've never forgotten but never figured out what the game was. Would be cool to find out!

Was it the SNES version of Wayne's World? :P

http://www.mobygames.com/game/snes/waynes-world_

haha, amazing! I think that could be it.

http://www.youtube.com/watch?v=qb3RqW66G9Q

Was there burping in that?

Honestly, I have no clue!

Ah well, I reckon that's got to be it. thanks!