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Cheat codes Enter the following cheats at the cheat code screen, found on the options menu. After each one press start to confirm. If done correctly, the name of the cheat should appear in a box to the right.Invincibility - left, square, up, triangle, right, circle, down, X Unlimited Ammo - down, X, left, circle, down, X, left, circle. Unlock Alien Mode - up, triangle, up, triangle, up, triangle, up, triangle Unlock Invisibility - left, square, right, circle, left, square, right, circle Unlock Slow Motion Mode - right, square, up, triangle, right, square, up, triangle Unlock Xen Gravity - up, triangle, down, X, up, triangle, down, X. Return to the Playstation 2 cheats. Content is © Level 80 - Computer game cheats | |