Very, very, good.
A control issue is present, however. I believe that Skull Face should not stick to a wall he is pressed up against, and should instead slide downward if the player is pressing towards the wall / not pressing anything. Also, if the player presses away from the wall, Skull Face should break off.
This is a mechanic present in Super Meat Boy that allows for PINPOINT PRECISION JUMPING, which is necessary to fit through some of the sawblade mazes. It may not be needed here (I'm on level 28 and I'm going to bed now), but it would still increase the fluidity of the controls.
Aside from that, excellent game. Catchy music and mostly-tight controls gives an experience kin to Super Meat Boy. :)