Snuggle Truck
I have it for iOS 5 but it's for PC too on steam.
It's a Trial-like 2D indie game.
So, you have a truck with 9 animals. If you drop all the animals you loose. The best thing about this game, though is the track editor, which allows you to make crazy stuff with it, if you're creative enough. You build loops, high jumps etc. And after you build your track, you can easily share it with players from all around the world, straight from the game. On steam it costs 3$, but on iOS i got it for free.