Ben 10: Cosmic Destruction - Electric Slammeroo! Guide (Part 1)

By: RoosterTeeth

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Uploaded on October 25, 2010 by RoosterTeeth Powered by YouTube

Geoff and Griffon show you where to find the first 12 hidden Sumo Slammer cards, needed to get the Achievement "Electric Slammeroo!"

Tags:
Ben 10, Electric, Slammeroo, Achievement, Guide, Cosmic, Destruction, Sumo, Slammer, Card, Tutorials, Xbox 360, Hunters
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