infinite energy
While playing the game, hold Z + L + R and press C-Up, C-Down, C-Left, C-Right, C-Up, C-Down, C-Left, C-Right.

Infinite ammunition
While playing the game, hold Z + L + R and press C-Down(2), C-Left(2), C-Right(2), C-Up.

Infinite time
While playing the game, hold Z + L + R and press C-Up, C-Right, C-Left, C-Down, C-Up, C-Right, C-Left, C-Down.

Cyclone weapons power-up
At the main menu, hold Z + L + R and press C-Left, C-Right, C-Down, C-Left, C-Right, C-Down, C-Up. This power-up doubles the damage caused by your weapons. Alternatively, successfully complete the weapons challenge mode with a Bronze or better finish.

Velocitar track
At the main menu, hold Z + L + R and press C-Left, C-Right, C-Up, C-Right, C-Left. Alternatively, successfully complete race mode with a Bronze or better finish.

All ships
At the main menu, hold Z + L + R and press C-Down(4), C-Right, C-Up, C-Left.