The following are known Action Replay Codes for Superman: The New Superman Adventures on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Infinite Freezing Breath
8122cde842c8

Infinite Health
8122cdd442c8

Infinite Laser Eye
8122cde442c8

Infinite Running Boosts
8122cddc42c8

Infinite X-Ray Vision
8122cde042c8