@Collins: Yeah, I hate single-character lvls too, especially the Spaz-biased ones. But those lvls are generally quite good and still playable with Jazz. Unless I'm seriously at a disadvantage I keep using Jazz, and so should you. If you're talking about Groundforce and Blurred's Survivor pack, then Spaz is actually a sensible choice because it would be far too easy for Jazz to escape traps in those lvls (with copter ears).