The following are known Action Replay Codes for Jackie Chan Adventures: Legend of the Dark Hand 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
f45b8426
b177316c
b1a5d5b7
65ae05f0

Infinite Health
b314b66f
bc78ceb4

Infinite Lives
29823e16
35177671

Max Score
16bcfca5
a3bda32f