Coal is a fast paced platformer in a black/white style with double jumps and excessive usage of the good old wall jump mechanics. Get all the keys in each level to open the exit door.
From the Homepage:
Your objective is to collect all of the keys and get to the door without being trampled, blown up, impaled, shot, or otherwise decimated. (This is a nonviolent game, just some pretty explanations for you. In other words, avoid the guards, mines, spikes, guns, and whatever else looks like it might be hungry for a little cute blob.)
The game has 100 levels and a boss, plenty of content for you to do some fancy footwork through. If that’s not enough though, included is the level editor that the developers used to create the levels!
Link to Gameplay Video (Pixel Prospector)