T'ai Fu: Wrath of The Tiger Cheats (PlayStation)

At the map screen, press R2, Triangle, R2, Triangle, Circle, Down, Square. 
  Then use the following codes at the map screen:

  Level-Boss select R2, Triangle, R2, Triangle, Circle, Square, Down, Triangle, Up, Right,
Left, Down, Up, L1 
  Story-Style select R2, Triangle, R2, Triangle, Square, Circle, Down, Triangle, Up, Left,
Right, Down, Up, L2 
  Credits-FMV sequence R2, Triangle, R2, Triangle, Down, Square, Circle, Triangle, Up,
Down, Left, Right, Up, R1

While playing, press R2, Triangle, R2, Triangle, Circle, X , Square.
  Then use the following codes while playing:

  Invincibility R2, Triangle, R2, Left, Right, R1 
  Infinite lives R2, Triangle, R2, Left, Right, X 
  Larger enemies R2, Triangle, R2, Left, Right, Up 
  Smaller enemies R2, Triangle, R2, Left, Right, Down 
  Full health R2, Triangle, R2, Left, Right, Circle 
  Full Chi R2, Triangle, R2, Left, Right, Square 
  Stealth mode R2, Triangle, R2, Left, Right, R2 
  All Kung Fu styles R2, Triangle, R2, Left, Right, Triangle 
  Enemies gush blood R2, Triangle, R2, Right, Left, Right

Between levels (while T'ai Fu is walking) press R1 & R2 at the same time. You will
then be able to walk across the whole map and explore. Press Circle at any time to face
the final boss with all styles.

Finish any level to access the map screen. Press Select + L1 + L2 + R1 + R2.