The objective of Silent Hill: Book of Memories is to guide the player character from an overhead perspective through a series of monster-filled dungeons. The player can choose from five character classes (bookworm, goth, jock, preppy, and rocker) for his or her player character, which can be customized to a degree. The player character receives experience points for defeating the various monsters; after enough experience points are obtained, the character levels up, allowing the player to improve the character's statistics ("strength, dexterity, agility, intelligence, mind, and vitality"). Each type of character prefers certain statistics; for example, a jock will have greater strength and dexerity than the other types.
Source: Wikipedia, "Silent Hill: Book of Memories", available under the CC-BY-SA License.