Fatal Frame II: Crimson Butterfly Cheats

Finish the game one time using the
Nightmare Difficulty Setting

Keep the game unpaused, and out of the menu/map screen. Allow Mio to remain idle for exactly five minutes. A ghostly image of a woman's face will fade onto a random point on the screen (looking at you) for a moment before disappearing. Then, the screen will get blurry for a moment and the woman's face will fade back in on another location on the screen. This will keep repeating until you use the controller again.

Beating the game on Normal mode will unlock Hard mode, two bonus costumes and accessories.

The Spirit List is an inventory of all the ghosts you've managed to capture throughout all your games. To unlock it, simply finish the game once on any difficulty level. Save your End Game data, load it and start a new game from the Bonus Features menu. The Spirit List is the same as the Ghost List in Fatal Frame 1. There will be a percentage indicator telling you how complete your list is. The Spirit List appears in your item and photo menu. Completing 100% of the list will unlock other bonus features.

Finish the game on any difficulty level to unlock the "Feel" and "Expand" camera abilities.

Follow the criteria listed to unlock the corresponding features:
Beat game on Easy/Normal: Unlock Rei List, Mission Mode, Gallery and the Feel and Expand Camera. You can also start a game with your weapons/items from the finished game.
Beat game on Normal: Unlock Hard Mode and two bonus costumes, plus accessories.
Beat game on Hard: Unlock Nigftmare Mode, plu Album feature. You'll also unlock more costumes and see the final ending.
Beat game on Nightmare: Unlock two new costumes.
Beat all missions in Mission Mode: Unlock more new costumes.