The Bike Maniac is trapped in a strange world of ramps and angled walls, and he has to drive like a maniac to escape. You'll have to help him time his jumps precisely and lean into his turns in order to advance through the levels. Keep in mind that the bike goes faster moving forward than in reverse, and sometimes you'll need to drive up a wall and switch directions quickly in order to build up enough speed to make a jump.
Controls: Arrow keys to lean, accelerate, brake; spacebar to switch direction