Survivor type game might be fun.... Everyone has to work together to complete a goal, but only one of them can actually make it out alive (Or less lethal... only one can 'win').
IT'd be a one-shot, but you could have like Season 2, etc...
Survivor: 3E. Survivor Modern, Survivor Cthulu (AAAAHH!!!!)
I'ld also like a DBZ game, but don't have the official rules... Anyone know if there's an SRD out there?
OR anyone interested in the rules me + my RL group play by? (We took about a year to actually design a DBZ PHB of our own.. It's not as long as the D&D book, but it's served us well for 2-3 years of playing, always being updated and revised.) I've got the book in a Text file if anyone's interested (I could e-mail it to you or post it on the boards or whatever).