any ghouly that he touches. Standard enemies in the game include zombies, mummies, imps, skeletons and zombie pirates. Many objects in the game with which the character can interact—including chairs, knives, and axes—can be used as weapons. The game also features various bonus challenges. Each room the player visits contains one of 100 hidden Bonus Books to be collected. For every five books the player collects, a bonus challenge is unlocked. The main objective of the bonus challenges is to revisit one of the rooms and perform a different task within it, such as defeating a number of enemies in a certain amount or time or surviving a duel with the Grim Reaper. If a player successfully completes a bonus challenge, they are awarded a bronze, silver, gold or platinum medal based on their performance. For every platinum medal earned, a piece of the game's concept art is unlocked. If the player earns a gold or platinum medal for all 20 challenges, a final challenge is unlocked that tasks players with completing the entire game again as Cooper's girlfriend Amber, who has very low health and cannot use power-ups. Completing the 21st challenge unlocks the game's E3 trailer and a deleted cutscene in the bonus gallery. Plot Cooper and his girlfriend Amber are looking for shelter from a storm when they come across Ghoulhaven Hall, a mansion owned by Baron Von Ghoul. When Cooper calls him a creep, Von Ghoul kidnaps Amber in retaliation. Cooper chases after Amber, encountering the many ghoulies inhabiting Ghoulhaven Hall. Crivens, the mansion's butler, agrees to assist Cooper, guiding him through the manor. Cooper eventually finds Amber, but before the two of them can escape, the mad scientist Dr. Krackpot appears and transforms Amber into a hideous ghouly. Cooper asks the cook Ma Soupswill for help, and she tasks him with collecting three ingredients she needs to synthesize a cure. Along the way, he is aided by the mansion's other inhabitants, including groundskeeper Fiddlesworth Dunfiddlin, Soupswill's skeletal assistant Mr. Ribs, and cleaning lady Barbara Buffbrass. After gathering the ingredients, Soupswill gives Cooper a jar of the cure. When Cooper pours the cure on Amber, Soupswill is shown to have mixed up one of the ingredients, resulting in Amber transforming into a bigger, hostile ghouly. Cooper is nearly overpowered by Amber, but Soupswill arrives and applies the correct cure, transforming Amber back to normal. Cooper and