The Red Star [PSX]

Classified Menu
For completing any of the eight the Arena mode levels with an A rank or higher, you can unlock cheats in the Classified section on the main menu
EX Difficulty Get an A rank or higher on arena level 1
Guns never overheat Get an A rank or higher on arena level 2
Shield Never Overheats Get an A rank or higher on arena level 3
Have All Guns and Gun Upgrades Get an A rank or higher on arena level 4
Protocol Recharges Automatically Get an A rank or higher on arena level 5
Health Recharges Automatically Get an A rank or higher on arena level 6
Wireframe Mode Get an A rank or higher on arena level 7
White Texture Mode Get an A rank or higher on arena level 8

Game completion unlockables
Maya Antares Beat the game