This game is soooooooo bad... The jumping sensitivity alone is enough to drive someone insane, not to mention the randomness of when it decides to let you live if a pixel of Meat Boy is over the edge of a buzz saw.
The dev really needs to work out the fact that if you don't wait for a solid 2 seconds -after- you release the z button, you'll still jump. Major lag kind of problem.
Two complaints... One, I hate how it gives you a bunch of power-ups in the very beginning that you really don't use because there's only one Pel going at a time. Two, I hate how when the s#!t hits the fan and you get a power-up, the AI makes it so it nullifies the power-up. Ex: I get an extra life, the AI makes it so that with my human reflexes and timing, I can't actually hit a Pel, losing the life I just got. Other than those two things, I loved it.