Ultra Boo

Ultra Boos (also known as Hyper Boos; not to be confused from the Hyper Boos in Super Mario Bros. Dimensions) are ancient ghosts born in Fantasy Forest and rivals of the Boos.
== Appearance ==
They are gray, spiky tailed ghosts that resemble that of the Boos.
== Story ==
These Boos betrayed King Boo and are banished to Fantasy Forest. Their empreor keeps the throne so everyone in the forest can worship him. King Boo notices this and starts a rebellion at the forest. However, the Hyper Boos are always emerged victorious. They help Mario and Luigi and Bowser to push away the Chaos Crystal in their first appearance.
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Category:Mario (series)
Category:Mario & Luigi (series)
Category:Mario & Luigi: Crystallized Chaos
Category:Males
Category:Females
Category:Boos
Category:Mario Characters