Corona gets trapped with others from different worlds in the underground by Proto-King and luckily, Corona has her Device to transform and destroys the trap, however Proto-King wounded her with a Proto-Blaster and Zacker (Goanimate) knocks him out. They discovered that, Corona got a Side Effect that covered her wound and if she do that, it will worsend the Side Effect. But it was too late, after they escaped, Corona turned into a monster. They have to return her normal.....

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