can gamecube games play on my xbox?
Umm... If you get a modchip I think you can download GC games... I know you can download N64 games and older. Might be able to put GC on it... I dunno, don't have an xbox anymore. Try researching it, Google does wonders.
points at thedude's answer not all of them. only select ones. xbox.com has a list of backwards compatible games.
Nope, but you can play xbox games on an xbox 360.