The following are known Action Replay Codes for Shining Soul 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
1497929f
292ab51e
66eb5739
3d06307c

Infinite HP
824f7160
2a956de9

Infinite SP
2e92e090
f313ab06

Quick Level Up
f4089172
8ae86ff3

Infinite Status Points
82c4d55f
7a244bf4

Infinite Skill Points
6ad62a00
203540fa
cc069b54
eab7f432

Max Stats
93183855
59d06db1
844d3f58
459eea08
c384bb8d
91b00ae5
a5900003
eea88a40
fb241074
0623b9f0