A massive game, one that is essentially 2 parts intertwined so well they're practically inseparable. A brilliant platformer, giving you the tools to recreate the whole thing over again, or better yet, to create your own ideas from scratch. It's not perfect - the controls could be tighter & the editor isn't quite as robust as you might hope - but what's there is nothing short of astounding. If you own a PS3, you cannot miss this. If you don't, this is the reason to get one.