Click the right arrow to rotate to the right. Click the left arrow to rotate to the left. Press the spacebar for thrust. Avoid the asteroid walls. Find your way to the exit. Exercise to the student: add asteroids or something! Fix the "r" and "q" commands. Make the maze extend to the next screen. Time how long it takes to get through the maze!
Flip across the edges by positiveX to negativeX and Y. Calculate the change in velocity by sin and cos of the direction.
