Hidden Artwork:
Place the game disc in a PC compatible CD-ROM drive to find various art from the game in the "BMP" directory in .BMP format.

Clone Monsters:
This trick will allow you to clone a monster to give a friend's game/save file, while keeping the original monster. Make sure that you are in the town area and your current character has the "Moon Lighter" or the "Moon Light S" item with him or her. Save your game at Sword's House and walk to the VMU Machine in the Monster House. Download "Moon Lighter" or "Moon Lighter S" mini-game onto your VMU. Download the monster you wish to clone onto the VMU
After it has finished downloading, exit the Monster House. WITHOUT SAVING, turn the game off. Turn the game on and select your friend's save file. Go to the monster House and load the monster from the VMU into the game. If done correctly, both save files should have acopy of the same monster!

Cooks:
Beat all of the dungeons and save the game. After completing the last dungeon, get Lady, save the game, then close the book. Wait for the credits to complete, and a FMV Sequence will begin. Save the game when prompted after the sequence. Exit, then load that game. Enter your Monster House, go to the encapsulate monster, and cooks will appear. Take him out and he will be one of your monsters.

Thanks to Revolution readers Charles and Dane Dunigan !