Complete story mode with the GP02A after defeating Gundam.
Complete story mode with the Zaku II after defeating New Gundam.
Complete the game with all twelve mobile suits under any difficulty setting.
Complete story mode under the easy difficulty level.
Complete story mode under the normal difficulty level.
Complete story mode under the hard difficulty level.
Complete story mode under the hard difficulty level without continuing.
Press Left, Up, Right, Down, Square, Triangle, Circle at the mode selection. A sound will confirm correct code. Select versus mode, then keep pressing Right at the Gundam selection screen. Note: press L1 (x4), R1 (x4), L1, R1, L1, R1, L1, R1, L1, R1 at the mode selection screen in the Japanese version of the game.
press Start + X at the versus mode screen.