PlayStation 2 :: The Red Star Cheat Codes

Completion bonuses
Successfully complete the game to unlock Maya Antares as a playable character and Arena mode. In Arena mode, you must defeat successive waves of enemies in eight arenas.

Arena mode bonuses
Successfully complete the indicated task in Arena mode to unlock the corresponding bonus under the "Classified" option at the main menu:

EX Difficulty: Get an "A" rank or higher on level 1.

Guns Never Overheat: Get an "A" rank or higher on level 2.

Shield Never Overheats: Get an "A" rank or higher on level 3.

Have All Guns and Gun Upgrades: Get an "A" rank or higher on level 4.

Protocol Recharges Automatically: Get an "A" rank or higher on level 5.

Health Recharges Automatically: Get an "A" rank or higher on level 6.

Wireframe mode: Get an "A" rank or higher on level 7.

White Texture mode: Get an "A" rank or higher on level 8.