Nemesis Cheat Codes for Gameboy

FULL OPTIONS PLUS
Start the game, then pause it by pressing Start. Now press Up,
Up, Down, Down, Left, Right, Left, Right, B, A and Start.

FULL SPEED AND SHIELDS
Start the game, then pause it by pressing Start. Now, press B 5
Times, then A 5 Times. This will work once per game.

FULL POWER DOWN
Start the game, then pause it by pressing Start. Now press the A
Button, then Left four times, then repeat the sequence four more
times. Use this code only if you want a real challenge; it will
take away all your ship's accessories!

NO POWER UPS
Start the game, then pause it by pressing Start. Press Up,
Select, Down, Select, Left, Select, Right, and Select, then
repeat this sequence twice more. Use this code only for added
challenge; it prevents you from powering up your ship!