Backup Dancer is the tenth zombie encountered in Adventure Mode and only appear in groups when summoned by Dancing Zombies and the second transformation of Skeleton Demon Zombie. They appear in sets of three or four, surrounding a Dancing Zombie with one on each side while showered by disco lights. Before complaints were made by the Michael Jackson estate, the Backup Dancers and Dancing Zombie used to be a reference to the song (and its zombie-themed music video) Thriller.