looks like a full-on retail DS game, looks to have plenty of pop-culture references, and has now gone free!The End
is a Temple Run-esque game with a more interesting style and setting.
(and nope, haven't played Angry Birds Space yet. I heard it's a lot better. I enjoy Angry Birds, but like I said I don't really feel I'm in control all that much, it's always a bunch of guess work where your bird is going to land. I prefer more precise controls and tactics, a la Amazing Breaker