Gex: Enter the Gecko

Pause gameplay, hold L2 or R2, and enter any of the following "Codes" using Up = U or N, Down = D or S, Left = L or W, Right = R or E, Triangle = A, Circle = O, and X = X:

Code	Effect
undead	Infinite Lives
weasle	Invulnerable
aloud	One Liners
senseless	Rambling Gex
earwax	Timer