The following are known Action Replay Codes for Monopoly on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Infinite Cash P1
800da694e0ff
800da69605f5

No Cash P1
800da6940000
800da6960000

Infinite Cash P2
800da6c4e0ff
800da6c605f5

No Cash P2
800da6c40000
800da6c60000