Skel Monsta

Skel Monsta appears the Bubble Bobble series, usually as an unkillable enemy in most games, but in Rainbow Islands he appears as the final boss of the game. He resides on Bubble Island in the game and can only be accessed if seven large diamonds from the first seven islands are retrieved.
== Appearances ==
=== Super Mario - Time's at Stake! ===
In this game, Skel Monsta appears as an Elite Hero helping Hero with his plan to destroy all timelines. He guards the Light Blue Heart Crystal keeping Mario and Luigi to be able to access Hero World. He plays a fairly large role in the game, and even alters the timelines to make another Elite Hero, H.D., even stronger during his battles. If Skel Monsta is defeated before H.D. is, Skel will fake his death, make H.D. extremely upset at the Bros. and makes both H.D.'s original battle and his rematch even stronger. If Mario and Luigi defeat H.D. first, Skel will not be altered with at all since H.D. doesn't fake his death. Skel's battle stats will remain the same in both his original battle and his rematch, as well as H.D.'s.