READ ALL! press b this time to fill the boost bar back up. arrow keys to move, z to jump/ homing attack. Down to slide. Down in the air to stomp. X to boost/ air boost. S to toggle debug mode; I would find it useful in development.
at this point you probably know what to do. 1: scratch.mit.edu/projects/609696634 2: scratch.mit.edu/projects/609112441