Dancing Underwater Zombies are three underwater like zombies only seen in Super Mabobo as a secret.
Two of them appear as a boss in Monster Party.
In The Game
Three green skinned and brown pants wearing and dancing underwater zombies are only seen when Abobo heads to the entrance of the level. White text above the zombies that says the words "nobody here but us dancin' zombies!" would also appear. You also get the "Thriller" medal after discovering this secret.