Start|Stop button to start and stop the game.
'N' or 'n' key to start next level.
Slower button to slow down the game (14 is slowest).
Faster button to speed up the game (0 is fastest).
AutoFire button turns automatic firing on and off.
'A' or 'a' key turns automatic firing on and off.
Touch Game Screen and your Fighter will move to that position.
'z' key and 'spacebar' to fire.
Arrow keys move left, right, up, or down.
TextON|OFF button. Game screen text.
StarsON|OFF button. Game screen stars.
BGON|OFF button. Game screen backgrounds.
FAQ button to diaply FAQs popup window.
Buy button to purchase unlimited level license.