Super Meat Boy
All are great games. I like Shank most, though.
Super Meat Boy just manages to make me rage.
The picture of me falling into a god damn hacksaw is burned into my god damn retina.
Despite it's power to influence me to stab homeless people and kidnap children, it's a solid game.
It would be a lot better though, If meat boy would scream in agonizing pain every time he falls into flames and his flesh starts melting off. Then I would even do it on purpose to relieve the anger.
PS: You're now famous, Ra.