The following are known Action Replay Codes for Star Wars Jedi Knight II: Jedi Outcast on Nintendo GameCube (GCN).

These codes are for the European version of the game.

Master Code – Must Be On
U600-YRM6-A0BM3
RW58-MFJR-WDQVJ

Infinite ammo
81F3-V4GK-TQZCP
EGFE-EKXG-PU2D6
N18Q-YNYY-4HEHA

Infinite shields
XP6X-95GF-K2088
5DUR-R90Z-EKG03

Infinite force
HB46-FX5D-1JZHT
DDZ9-699H-PG23F

Fast force recharge
5TB3-F50F-425CM
14CP-1527-8Z9QJ

Very fast force recharge
YNJ8-7CE7-D43X1
VVJV-T6FW-XP3UM

No one dies
0YM2-ZAN8-QY870
H8FU-0KPP-ZNGFY

Open all characters
D1HQ-65RK-RWJBB
U42V-4EX2-1FX80
20U8-U506-B7FUZ
QC50-X994-GXHU1
42BA-UWDU-J2NVG
25ZT-KCF3-EH06D

All levels open in level select
01MG-A0UC-8NEUT
6W8C-XE2G-UHMDB
2YVJ-DGCE-NH5KJ
ECKE-E461-6RAPE
7858-XB3D-MVA2X
GR71-DZ2Z-2GP1U
EJZW-K3JY-1W4E0
6CCB-7JTA-ATD6P