The following are known Action Replay Codes for Gauntlet: Dark Legacy on Nintendo GameCube (GCN).
Master Code – Must Be On
ZR94-1RVQ-VCDFH
YJ3T-67UC-U3825
Player 1 health 9999
ZGHE-HU0A-RQHEB
7WJR-JC5V-00DUA
Player 1 infinite keys
8MGZ-XH8P-Q12MN
PUXJ-M0H6-1PU2R
Player 1 tons of cash
HE0D-ZMPX-6Y7WY
ENX2-DWER-4TMEG
Player 2 health 9999
ZWX4-GA48-YN4C0
H21H-54V8-GEN94
Player 2 infinite keys
FC2Q-TT9M-WDQ20
Y034-C2PV-3XNB2
Player 2 tons of cash
EPGW-H37Q-DRU3K
T7GM-M94E-73J9V
Player 3 health 9999
C6AX-EFM8-989X1
QTAF-KQ28-67R4J
Player 3 infinite keys
69DB-TM9K-N1VTZ
5GVR-9RTW-TNWZN
Player 3 tons of cash
6VKE-9CUW-E659P
2TM9-PVVK-V6YB4
Player 4 health 9999
BNJT-ZHHC-2E6EE
HAZ1-Q5KX-ARQ7R
Player 4 infinite keys
P7FT-ZWY0-NM9BP
GT89-W3NE-GC5UX
Master Code – Must Be On
ZR94-1RVQ-VCDFH
YJ3T-67UC-U3825
Player 1 health 9999
ZGHE-HU0A-RQHEB
7WJR-JC5V-00DUA
Player 1 infinite keys
8MGZ-XH8P-Q12MN
PUXJ-M0H6-1PU2R
Player 1 tons of cash
HE0D-ZMPX-6Y7WY
ENX2-DWER-4TMEG
Player 2 health 9999
ZWX4-GA48-YN4C0
H21H-54V8-GEN94
Player 2 infinite keys
FC2Q-TT9M-WDQ20
Y034-C2PV-3XNB2
Player 2 tons of cash
EPGW-H37Q-DRU3K
T7GM-M94E-73J9V
Player 3 health 9999
C6AX-EFM8-989X1
QTAF-KQ28-67R4J
Player 3 infinite keys
69DB-TM9K-N1VTZ
5GVR-9RTW-TNWZN
Player 3 tons of cash
6VKE-9CUW-E659P
2TM9-PVVK-V6YB4
Player 4 health 9999
BNJT-ZHHC-2E6EE
HAZ1-Q5KX-ARQ7R
Player 4 infinite keys
P7FT-ZWY0-NM9BP
GT89-W3NE-GC5UX