Osmos - This game was more of a time killer and eventually became more and more repetitive, yet still it was a great challenge.
Zombie Driver - this is an awesome game... got stuck into it for a good couple hours... you also gotta make sure you dont suffer from motion sickness... you can think of it as a newer kind of setup to the original GTA's but tackling Zombies and saving people etc.... i had to stop for a while because everything i looked at seemed to look like ocean waves lmao