Try to beat all 3 levels with as few deaths as possible. You begin as a square and must get close to enemies to be able to fire your homing projectiles. You must also prevent your green core from being hit because that means starting over. Up arrow Jumps. You can tap again to double jumpLeft/Right arrow Move left or rightDown arrow Launch yourself down, useful for dodging.Esc Go back to the menu, this clears your level progress but not your lives.