An amazing game, although better when you get the complete version on the computer on which more levels and options are created for you. The ds version is not as good but still an amazing game. I have never played the psp version but the xbox version is also superior although not as good as downloading the full version on the computer. It builds creativity and strategy as well as lopgic by having to solve (and dodge) you're way out of the levels. That's pretty much the premise of the game.