The following are known Action Replay Codes for The Incredibles 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
7e7a40b6
caa78362
49f96e2e
3c16ba51

Infinite Health
02bbae57
95c311d5

Infinite Special
9920f7e2
70a35907

Infinite Lives
42f04245
9580618b

Never GEt Knocked Down
f6b2241e
5deb29e8

Enemies Die Easily
1883020e
eec62895
8e883eff
92e9660d