Quietly, Spidey crept up and grabbed Oversoul's arms to free him from the zombie girls in french maid outfits who appeared madly in love with Oversoul in a sort of bizarre reverse-necropheliac/undead nymphomaniac mating ritual.
Vomit erupted from those around him, as the grotesque BigBlue gorged himself on zombie parts, he was so zealous in his feeding that he almost ate one of Oversouls Tentacles before discovering it was in fact live meat...
A Vesuvian Doppleganger is the answer to that riddle my friend... For that was merely one aspect of BigBlue, and he may take on many guises as deemed necessary. (and the beauty of the Doppleganger is it stays Blue! )