Basketball, baseball, football - uh, American football, not soccer, though we had that too - volleyball... you get th epicture. I know Andalites have something called 'driftball' which Ax explained to me once and I think it sounds like basketball but in low-gravity? I know Hork-Bajir don't really have sports, and I doubt Yeerks do either and I don't think I'd want to know about them if they did.

And the the Skrit Na pretty much just make a sport out of kidnapping humans and other species and flying around with them or putting them into zoos.