The following are known Action Replay Codes for Blender Bros. 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
614cb103
82be4aae
51e1a49b
0d391880

All Levels Unlocked
8282133e
b38f4628

Mini Bros Unlocked
186b4849
e707bcef

Max Bones
5634b328
d52c738e

Infinite Health
60acabe2
5c2321a5

Infinite Lives
17f5f887
17c5a458

Infinite Blue Records
6a30efe4
6e88ab9c

Infinite Green Records
7ed4bb98
4a8e107a

Infinite Gold Records
b381899f
32a2330b