Play as MA-08 Bygzam
Complete story mode under the easy difficulty level.
Play as AMX-002 Neue-Ziel
Complete story mode under the normal difficulty level.
Play as Psycho Gundam Mk III
Complete story mode under the hard difficulty level.
Play as 0Z-15 AGX Hydra Gundam
Complete story mode under the hard difficulty level without continuing
Play as Gundam
Complete story mode with the GP02A after defeating Gundam.
Play as New Gundam
Complete story mode with the Zaku II after defeating New Gundam.
Play as Ball
Complete the game with all twelve mobile suits.
Play as Char Aznable's Red Zaku II
Press L1(4), R1(4), L1, R1, L1, R1, L1, R1, L1, R1 at the main menu. A sound will confirm correct code entry. Select versus mode, then keep pressing Right at the character selection screen.