If you thought Meat Boy was difficult or even vvvvvv wait till you try Birden from Bitendo Software. A game in which you must avoid all the spikes, traps and enemies to reach the exit, but I guarantee you will not last long as you will die over and over again in frustration. As a bird you can flap about to avoid these deadly devices but wrong one flap and it's instant death (and level restart). Not just that but the developer has decided to make the character like an elastic band, which ends up with you bouncing and sliding all over the place, thus you have been warned!