The following are known Action Replay Codes for Crouching Tiger, Hidden Dragon on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
90f3f85c
03ae94f5
ad9c190f
932c2cbe

Infinite HP
2efa6e0c
6dc1eae9

Infinite Lives
787a1a29
9133eb37

Infinite Chi
a2b56f07
c7f9ffc1