By: 

   Release date: 



   The codes.


   Use the joystick to move the cursor to the top left corner
 of the cargo/energy screen. Press +(Keypad) FIRE to enable
 cheat mode. The screen will flash to confirm correct code entry.
 Unlimited shields and lives will be available while cheat mode
 is active. Press one of the following keys to activate the code.

 F1         Disable enemies.
 F6         Full energy.
 0          Weapon.
 1          Weapon.
 2          Weapon.
 3          Weapon.
 4          Weapon.
 5          Weapon.
 6          Weapon.
 7          Weapon.
 8          Weapon.
 9          Weapon.

   To go to the of end of game, first enable cheat mode, then
 select the outermost planet.