Completion bonuses: Successfully complete the game to unlock as Maya as
a playable character and Arena mode. In Arena mode you must defeat
successive waves of enemies in eight arenas.
Cheat mode: Complete the indicated level of Arena mode with an
"A" or better rank to unlock the corresponding cheat
option at the Classified menu.
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EX Difficulty: Arena level 1
Guns never overheat: Arena level 2
Shield never overheats: Arena level 3
All guns and gun upgrades: Arena level 4
Protocol recharges automatically: Arena level 5
Health recharges automatically: Arena level 6
Wireframe mode: Arena level 7
White Texture mode: Arena level 8
