The following are known Action Replay Codes for Chameleon Twist 2 on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

All Costumes
8016451a00fe

Have 6 Carrots
80164519007e

Infinite Health
8018ba7d000f

Max Collectable Items
801645010063

All Levels
80164508003f

Press L To Levitate
d018bab50020
8118b9e04200