Move with the left and right arrow keys, jump with the up arrow. Walk into the walls to rotate the stage. Interact with objects using the spacebar. Collect coins and get to the flag to complete each level.
I like it, but the leveldesign goes from being tricky to figure out to being tricky to complete. Some of the middle levels boggle your mind a bit but then it turns into a standard "dodge 1 million dangerous obstacles" platformer.