I'm A Nerd: Super Meat Boy

Team Meat released this single player game in October, 2010. It pretty much cleaned up for every kind of award for indie games. It has sold over 600,000 copies last I checked and was considered the most challenging game of 2010 according to IGN. It has very simple controls but every move has to be precise or you little meat boy will go slashing into saws. I love that the saws are all covered and meat and that the gore doesn't disappear if you fail the level. Certainly worth trying... now I just have to get good at it.