<Li> Fire King Skeleton and Ice King Skeleton - Two bosses from The Nightmare Before Christmas: Oogie's Revenge . Fought in "Fire and Ice Frenzy," these two big skeletons appear to fight Jack after he replaced the Oogie - Doors with the real Holiday Doors . Use the Santa Jack costume to fight the Fire King Skeleton and the Pumpkin King costume to fight the Ice King Skeleton . </Li> <Li> Giant Snake - An artificial bug - filled snake who is a boss in The Nightmare Before Christmas: The Pumpkin King . </Li> <Li> Halloween Ghosts - The Halloween Ghosts appear in The Nightmare Before Christmas: Oogie's Revenge having been created by Dr. Finklestein at the time when Oogie Boogie tricked the citizens of Halloween Town . The Halloween Ghosts are much different from the ghosts that appear in the movie as they are very fast and great at dodging . Tricking them to come near Jack and sending them into the ground is an easy way to defeat them . They are seen in "Jack's Return" in the Oogie Boogie Shadow battle . <Ul> <Li> King Ghosts - They are stronger than the Halloween Ghosts, but require the same tactics to defeat them . </Li> </Ul> </Li> <Ul> <Li> King Ghosts - They are stronger than the Halloween Ghosts, but require the same tactics to defeat them . </Li> </Ul>

How the characters on the nightmare before christmas died