Indiana Jones and the Emperor's Tomb Cheats

Watch Indy's hat while it's on his head; pause the game at a quiet
moment, Indy's hat will disappear, unpause the game; Indy's hat
reappears, Ta - Daa!  This will probably work for other systems
too.  (Try to get a good angle because when you pause the game;
the text will be in the way and you won't see Indy's hat very well)

When you reach Istanbul Sunken City, to break the damaged wall, hover above the head in the water with the crane. Press X and it will automatically break it up.

At the "Press Start" screen, hold L1 + R1 and press Up(2), Down, Up, X, Square, X, Circle, Up, Down, Triangle, Start.
If you entered the code correctly, you will hear a song.
You will become invincible with infinite ammunition

Go to the start screen and hold down L1+R1 and press up, up, down, up, x, square, x, circle, up, down, triangle, start

When you reach Istanbul Sunken City, to break the damaged wall, hover above the head in the water with the crane. Press X and it will automatically break it up.

Go to the press Start screen and HOLD L1 + R1 and press Up, Up, Down, Up, X, Square, X, Circle, Up, Down, Triangle, Start.