Oddworld: Stranger’s Wrath

Cheat mode:
Note: This requires two controllers. During game play, insert a 
controller into port two, then remove it without doing anything 
else. Next, immediately press X(2), Y(2), B(2), A(2) on controller 
one to enable cheat mode. A sound will confirm correct code entry. 

Invincibility:
Enable the "Cheat mode" code, then press X, Y, A, B, X, Y. The 
health gauge will turn yellow to confirm correct code entry. 

$1,000:
Enable the "Cheat mode" code, then click Left Analog-stick(2), 
Right Analog-stick(2), Left Analog-stick(2), Right Analog-stick(2). 
Repeat the code to get more money.