checked-no =>Extreme Mode: Complete a Hard mode game to unlock the Extreme difficulty. =>Cheat Menu: On the main menu, press Zx2 Yx2 Xx2 Bx2 [START]x2. Now, enter the Game Options screen and you will be able to access the Cheat menu. =>Cheat Codes: Enter these in the Cheats menu in the Game Options. |MISSION LIST| Stage Select |NEXT MISSION| Skip to the next mission |TROOPER LEVEL| Smarter Troop |INFINITE SAVES| Infinite saves |ENEMY LEVEL = 0| Stupid enemies |INFINITE AMMO| Endless Ammo