Giant Bubble

are recurring in . go unnamed in .
==Characteristics==
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 can be found in the . They appear as large skulls with horns surrounded by fire. They behave like normal as they bounce off of boundaries, but if struck three times, they split into two fast-moving . They can be destroyed without splitting if continues to strike it without stopping, but they will not yield any experience.
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Two appear in a side-scrolling passageway of the . They look different from regular , appearing as flashing balls of fire with eyes, but behave similarly; bouncing around the tunnel's walls, ceiling and floor. They can not be harmed and will cause damage when touched by .
==Nomenclature==
==See Also==
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