The first time that you access the Cursed Pages only the 'Four Strange Masks' and 'Haunted Doll' mini-games will be available. If you Complete the following tasks two more mini-games can be unlocked.
Unlock 'Boy In The Book' Mini-Game: Complete ALL 'Four Strange Masks' levels (except for Endless). In this mini-game the Masked Boy who lurks inside the diary of faces wants to play hide-and-seek and you have to use the camera to find him within the book.
Unlock 'Spirit House' Mini-Game: Complete the first level of 'Boy in the Book'. This mode takes you into the old house of the game where you will need to dispel the cursed entities within by photographing them.