Use up arrow, Down arrow to move. Space bar to Shoot laser to destroy asteroid and use left arrow to refill. The amount of shots are shone on the blaster. And if you get more that 20 on the score you win. if you miss 10 asteroid in the avoided you lose. And the last thing is warp speed for difficulty if you have 32 or less its easy, 33 or more medium, and 66or more hard.
