I've played this a bit more, and so far, it just hasn't hooked me like it has some people. I find it's pretty stupid that it's getting stellar reviews, too... Sure, it's unique, but it still isn't what I'd call fun. Hell, it barely qualifies as a game.
If it didn't have trophies, I'd probably have abandoned it by now. Seems kind of pointless to me... Plus there's zero indication of what you can do, like eat and combine things. I had to read about that one somewhere, since you can only combine certain things and you have to push a button to do even that, and the game never tells you R2 is 'digest' as well.
Plus why the fuck is everything mapped to two buttons? What if I want to eat and not jump?
The more I think about it, the more I think this game is just badly designed. If it cost more than five bucks, I'd be pretty pissed, but as it stands, I guess it's not a rip-off.