B.O.B. (short for Benzoate Ostylezene Bicarbonate) is one of the deuteragonists in the DreamWorks' Monsters vs. Aliens franchise. He is a blue one-eyed indestructible gelatinous mass that was spontaneously created in a laboratory when scientists injected a chemically-altered ranch dressing into a genetically-altered tomato. He has the ability to absorb anything, can form into any shape, doesn't have a brain and digests objects within seconds (depending on size). He can also extend his body and detach his eyeball. He was captured in 1958 and was sent to Area Fifty-Something.
He is voiced by Seth Rogen.
After saving all toons, Chip and Dale find out about a war between 3D and 2D toons, and that Gorefield is trying to kill everyone, now they must team up with Peter Pan to stop him, it's gonna be a full war.