exclusive are two new levels not included in the original wii release, "naked terror" and "creeping flesh". they both serve as a sidestory in-between the main game featuring varla gunns and a new female character, stripper candi stryper. they contain new enemy types (strippers, meat plantation workers and skinless zombies), additional bonus materials for the player to collect, and two new boss battles. new weapons like a crossbow and a few others have been added to "extended cut" as well as an entirely new in-game screen layout. extras from the wii version like the mini games and director's cut mode also make it to the "extended cut", along with new content. a pre-order comic book, "prelude to an overkill" is available in-game as a collectible bonus material.