The following are known Action Replay Codes for Ms. Pac-Man Maze Madness on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Master Code – Must Be On
f12005e03c02
f12005e2a00c
f12005e80020
f12005eaf809
f12005ecac40
f12005eeb170

Infinite Health
8111d55c003c

Infinite Lives
8010a3d70009

Have All Dots
8111d55e03e7

Max Score
8111ef14e0ff
8111ef1605f5