The Mummy

Unlock cheats:
To enter the cheatcodes you pause the game, select Quit -> Replay Level -> Bonus Game Modes, then press the code:

Invincibility - Triangle, X, Circle(x2), Square, X, Triangle, Square. (or Finish the game with a minimum of 65%)
All weapons - Circle, Square, Circle, X(x2), Triangle(x2), Square. (or Finish the game at any percentage)
Unlock Cairo level - Triangle, X, Triangle, Circle, Square, Triangle, Circle, X. (or Finish the game with a minimum of 50%)
Infinite ammunition - X, Triangle, X, Square, Circle, Triangle, Square, Triangle. (or Finish the game with a minimum of 55%)
Infinite lives - Circle(x2), Triangle, Circle, X, Square(x2), X. (or Finish the game with a minimum of 60%)

All cheats - Finish the game with a minimum of 78%.

 