A and Z to rotate, M to shoot missiles. Space for thrust (though you can clear the level without needing to use it) Missiles are somewhat unpredictable. You have 7 lives in which to clear the level, and you'll probably need them - the pace gets fast and furious very quickly! Does the world need another Asteroids game? Probably not, but I'd never written one and I wanted to see if I could hack one out in a day. Most of the time was in wasted cut & pasting - Scratch really could do with arrays of sprites!