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.
Level select
Press [R1], [L1], [Circle], [Square],
[L1], [R1], [Triangle], [Select] at the bridge
screen.
All ships
Press [L1], [Square], [L1], [Square],
[R1]x2, [Circle], [Select] at the bridge screen.
Invincibility
Press [L1], [Circle], [L1], [R1],
[Triangle]x2, [Circle], [Select] at the bridge
screen.
All medals and ranks
Press [L1], [R1], [L1], [Circle],
[R1], [Triangle], [L1], [Select] at the bridge
screen.
Kobayashi Maru difficulty setting
Press [L1], [Triangle], [L1]x2, [Square],
[Triangle], [R1], [Select] at the bridge screen.