The following are known Action Replay Codes for Iggy’s Reckin’ Balls on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Extra Characters
810c632effff

Always Have 99 Points
810d8ee00063

Infinite Credits
800bdea50005

Enable All Courses
810ccdf20b00
810ccdf40b00
810ccdf60b00