B.O.B (Bicarbonate Ostylezene Benzoate). He's or it.. is an indestructible gelatinous mass. He is spontaneously created by the accidental mixture of a genetically altered tomato and a ranch-flavored dessert topping. Captured in 1958 and has mindless obliteration with an insatiable appetite.[http://www.monstersvsaliens.com]
When California resident Susan Murphy (Reese Witherspoon) of Modesto mysteriously grows to 49 ft 11 in, she is labelled a monster and captured by the military. She is remanded to an institution that houses other monsters: Dr. Cockroach, Ph.D., an insect-headed mad scientist (Hugh Laurie), the Missing Link, a 20,000-year-old fish-man (Will Arnett), B.O.B., a gelatin-like, jolly, indestructible monster (Seth Rogen) and Insectosaurus (Jimmy Kimmel), a fuzzy bug that stands at 350 feet tall, making even Susan look tiny by comparison. When a UFO lands and an alien overlord named Gallaxhar (Rainn Wilson) demands that Earth be given to them, General W.R. Monger (Kiefer Sutherland) suggests to the President (Stephen Colbert) that the monsters can provide the firepower to defeat the aliens. [Wikipedia]
