Critter Crunch - This game is, like, so awesome!

This game is a gem.  On console, it's a PSN exclusive, but you can get it for on the iPhone as well.  It's 6.99$ and probably the best game i bought.  It's easy to play, but hard to master type of game.  It is basically a chain puzzle game.  But in the form of Food Chains.  A small critter will feed a medium one and a medium one will feed a large one.  The mechanics are very simple, but it's really addicting. 
If you have a PS3, this game is a must buy.  An awesome Indie game.