The following are known Action Replay Codes for Dragon Ball Z: Buu’s Fury 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
8b236d17
09737ec4
f8efc431
dcf3726b

Infinite Zenie
e1b9a799
b47dab9f

Have All Supplies
01a8a7d7
0594d5a0

Low Game Time
1d10449c
3139b630

Goku Codes
2c35cec1
3efe80b3

Infinite HP
89056abb
89469761

Max HP
49c7e89e
49eee6d6

Infinite EP
7d34cf5d
96ca20c5

Max EP
31c13417
a5adc080

Max Level
73f4d6bf
509ffe13

Max Stats
d4dffa27
c4d4e8ae