The following are known Action Replay Codes for Catwoman on Nintendo GameCube (GCN).

Master Code – Must Be On
50GJ-8YXG-QAVB9
8RHE-9PV1-H31EJ

Infinite Health
DAJC-Y8DH-WPEYM
JWZ3-0YC5-Q1CU9

All These Points
CHE7-CWV4-WT5EE
EKX1-GN9C-EVRKP

Infinite Diamonds
ZAHE-N6VE-BW5TU
KHH4-DG0G-6MPN4