PLEASE NOTE: We take no responsibility for any changes you make to your hardware, software, drivers or O/S as a result of the cheats listed here. Only a few of the cheats listed have been tested and we cannot guarantee any of them will work. If you come across a bad/non-working cheat, please let us know and we will remove it.

The Golden Mice
When the mansion is dark, the Golden Mice will come out! Collecting the Golden Mice will earn Luigi a lot of extra money. To make the Golden Mice appear, search the hidden blocks of cheese with your Game Boy Horror. The blocks of cheese are in the following rooms:

The Study
Madame Clarivoya's Room
Dining Room
Tea Room
Safari Room

Golden Mice also appear at random in certain areas when they are dark:

Main Hall (x2)
Kitchen
Tea Room
Sealed Room

There are a total of 10 Golden Mice in the game, be sure to catch them all, it will help you earn an A Rank!
Get the Tent
In order to "earn" the tent, you'll have to go through the entire game and collect less than 5,000,000 G. Try not to collect any treasure except King Boo's jeweled crown (which you must collect to finish the game).
Warp to the entrance
To warp back to the entrace, use the Game Boy Horror to analyze any mirror in the mansion. You'll be warped back to the entrance foyer.