Character mistake: In Janne's ending, she concludes "My SERCH for a suitable mate continues..."
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Other mistake: The "How to play" instruction demo informs that "The strength of your attack is based on the length of time you you press each button", with a repetition of the word "you."
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Character mistake: When you reach the final boss in the game, he introduces himself saying "My name is Gee Gus." No it's not. It's "Geegus", no spaces, as shown by the name above the energy bar and the sequels.
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Character mistake: In the arcade version, one of Hanzo's winquotes is "Can you now FATOM the power of the Iga Ninja?"
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Character mistake: Rasputin's ending begins with "Having vanquished the VILLIANS".