All power-ups: Press Start to pause game play, then press Up(2),
Down(2), L, R, L, R, B,
A, Start. Note: This can only be done a limited
number of times until it causes your ship to self-destruct.
Information in this section was contributed by Ryans988.
Alternately press Start to pause game play then press Down(2),
Up(2), Right, Left, Right, Left,
A, B, Start. This code can be done as many
times as needed, but costs one life. Additionally, it does not
provide the Speed power-up.
Information in this section was contributed by bamboot.
Half speed: Press Start to pause game play, then press Left,
Right, Up, Down, Left(2), Right,
Start. Repeat the code to disable its effect.
Self-destruct: Press Start to pause game play, then press Up(2),
Down(2), Left, Right, Left, Right,
B, A, Start.
Delete saved game: Enter the options screen, highlight "Exit",
then hold L + R + B and press Start.
Challenge A mode: Successfully complete the game to unlock the ''Challenge
A'' option at the main menu.
Challenge B mode: Successfully complete the game in Challenge A mode.
