The following are known Action Replay Codes for Smuggler’s Run 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
ce5778bb
30add0bf
1acdbac3
9123d105

All Levels
9b9fd4f5
4152560c

All Vehicles
9a0d2437
acd21d2f

Infinite Time
054f6567
a667cd84