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(2), 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(2), 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(2), X, Y, R, White at the bridge screen.