All weapons
Pause the game and select "Quit".
Select "Replay Level" at the next screen, then select "Bonus
Game Modes". Then, press Circle, Square, Circle, X(2), Triangle(2),
Square. Alternately, successfully complete the game with any completion
percentage.
Bonus level
Pause the game and select "Quit".
Select "Replay Level" at the next screen, then select "Bonus
Game Modes". Then, press Triangle, X, Triangle, Circle, Square, Triangle,
Circle, X. Alternately, successfully complete the game with at least a 50%
completion to unlock the Cairo level.
Infinite ammunition
Pause the game and select "Quit".
Select "Replay Level" at the next screen, then select "Bonus
Game Modes". Then, press X, Triangle, X, Square, Circle, Triangle,
Square, Triangle. Alternately, successfully complete the game with at least a
55% completion.
Infinite lives
Pause the game and select "Quit".
Select "Replay Level" at the next screen, then select "Bonus
Game Modes". Then, press Circle(2), Triangle, Circle, X, Square(2), X.
Alternately, successfully complete the game with at least a 60% completion.
Invincibility
Pause the game and select "Quit".
Select "Replay Level" at the next screen, then select "Bonus
Game Modes". Then, press Triangle, X, Circle(2), Square, X, Triangle,
Square. Alternately, successfully complete the game with at least a 65%
completion
All Weapons
Beat the game.
Bonus Level
Beat the game with at least a 50%.
Unlimited Ammunition
Beat the game with at least a 55%.
Unlimited Lives
Finish the game with at least a 60% completion.
Unlimited Health
Finish the game with at least a 65% completion.
All Cheats
Finish the game with a 78% completion.
Mummy Returns Trailer
Beat the game and the Mummy Returns trailer will be unlocked.
Secret switches
Ok. Shortly after starting the 2nd level, you will probably get stuck in the
room with the big statue of the legs. In order to open the door you have to find
two secret switches. (facing the front of the statue) look on the wall to the
right of the statue. There are a bunch of paintings of people sitting on chairs.
one of the pictures is sticking out. walk up to it and push X. it will slide in.
Next, on the other wall, across from the first secret there will be another
picture sticking out. press it and then get the yellow key thing on the box. now
you can open the door.
