Cheat mode
You must be on the menu screen that looks like you are
on the bridge of the Excelsior to enter the following codes. When
you do, a text response will appear in the top right corner of
the menu to confirm correct code entry.
All ships
Press [Black], [L], [X], [L], [X],
[R]x2, [B], [White] at the bridge screen.
Level select
Press [Black], [R], [L], [B], [X],
[L], [R], [Y], [White] at the bridge screen.
Invincibility
Press [Black], [L], [B], [L], [R],
[Y]x2, [B], [White] at the bridge screen.
All medals and ranks
Press [Black], [L], [R], [L], [B],
[R], [Y], [L], [White] at the bridge screen.
Kobayashi Maru difficulty setting
Press [Black], [L], [Y], [L]x2,
[X], [Y], [R], [White] at the bridge screen.