Continuity mistake: When Po and the Furious Five are in the top floor in Shen's palace, the lights above them are brightly lit. After Mantis smashes the cannon through the floor, the lights turn off.
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More mistakes in Kung Fu Panda 2
Shifu: This could be the end of Kung Fu.
Po: But I just got Kung Fu !
Shifu: And now, you must *save* it !
Trivia: Masters Storming Ox and Ferocious Croc, and the wolves that are Shen's henchmen all make a brief appearance in the opening of the first Kung Fu Panda.
More questions & answers from Kung Fu Panda 2
Chosen answer: No, it is merely a joke about the size of Mantis and his surprising fighting prowess. "Fear the..." is a somewhat common joke. For example, the University of Maryland uses the unofficial slogan "Fear the turtle!"; the Milwaukee Bucks use the slogan "Fear the deer", etc.
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