The problem with most computer characters is that they're so bloody solid all the time. Imagine how much more fun Tomb Raider would be if Lara Croft could turn herself inside out and fight dinosaurs with her spleen, for example.
While the makers of Tomb Raider have bizarrely failed to return our calls, at least we can make do with Gumboy to fulfill our sick little fantasies. In Gumboy you're a boy made out of gum who has to do all sorts of crazy shit despite having gumlike properties – Gumboy can bend, stretch, roll, float, change shape and change size at will. The makers of Gumboy claim that it's unlike any game you've ever played, and until Sega take our Sonic: The Playdoh Years pitch seriously, they could be right.