The DSiWare version isn't bad, but it isn't that good, either. It takes a picture of your face whenever you activate a checkpoint, whether you like it or not. Some of the music was removed, but was programmed to loop. There are now "Anti-Dark Matters", like achievement, but they're really hard. All in all, I'd recommend the DSiWare Rayman if you don't have any other means to play it.