Ultimate Showdown is a crossover game.
Spider-Man is preventing a museum heist by Mysterio when Nova accidentally shatters the amulet he was stealing as Blakk shoots Tempesto upon Eli and the seven Chaos Emeralds come together thanks to Dr. Eggman. Luckily, Madame Web manages to get them into a location existing on the edge of time. Now they must claim the amulet pieces or reality will fall apart.
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