McOober is a Dark Boo that first appeared in McBoo's Mansion 2. He is the dark version of McBoo that is both stronger and smarter than McBoo. he is the father of tranzformez and the grandfather of haunty mole.
An all-new creation made by Tranzformez, created by copying McBoo's DNA and adding a pinch of darkness. McOober is both stronger and smarter than McBoo, but not enough for McBoo is defeat, just like any other dark enemies.