Collect all eighteen Sumo Slammer cards.
| Achievement | How to unlock | Points
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| - You've flattened 6 enemies with a single Cannonbolt roll!
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| - You saved a Bumblebee by stunning it out of it's self-destruct (then probably defeated it anyway).
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| - You've achieved a combo of 100 or more, showcasing your mastery of punching a whole lot.
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- And Then There Were Ten (secret)
| - You've unlocked every Boost for all your alien forms! Time to show off your awesome skills!
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| - You've unlocked every Boost for one of your aliens! Don't forget to try the others.
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| - It's great that you're so enthusiastic, but please use the Omnitrix. It took a lot of time to make.
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| - Three enemies are all washed up after you defeated them with a single use of Overflow's ability.
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| - You've survived the Hive and saved Queen Bee's "captive" audience.
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| - You've moved like lightning and completed "The Canyon" in under 15 minutes!
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| - It must be rush hour! You've completed "The City" in under 15 minutes.
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| - You've ruined five objects and an enemy's day in a single throw.
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| - You've ruined 10 enemies days by hitting them simultaneously with Diamondhead's ability.
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- Didn't Feel a Thing (secret)
| - You've defeated the Weatherhead Prime without being hit! Incredible!
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| - You've confused a Pie Juggler by defeating them while their pie was airborne with XLR8's ability.
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| - You've defeated 5 Bumblebees by barely lifting a finger.
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| - You've completed every Achievement in Ben 10! Congratulations!
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| - You've survived the worst show ever made and completed "The Hive" in under 15 minutes!
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| - Gotta rescue Gwen and Max! You've completed "The Scrapyard" in under 15 minutes.
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| - You've survived the Wheel of Misfortune and put an end to Zombozo's evil schemes.
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| - Who needs brains when you have lasers? You've hit 5 enemies with a single shot from Grey Matter!
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| - You've defeated Zombozo without taking a single point of damage! Great job!
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- Not Much Funhouse (secret)
| - You've ruined Zombozo's day by completing "The Funhouse" in under 15 minutes!
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| - You proved that you're a skilled combatant (and a good listener) by completing 30 bonus objectives.
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| - You've shown mastery over the Omnitrix by using all forms in one fight.
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| - You've taken 5 enemies for a spin and defeated them all with a single use of Wildvine's ability!
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| - You've shocked a Weatherhead by dodging lightning and following up with a punch from Upgrade.
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- Riding the Storm (secret)
| - Reach the top of the Weatherhead Tower without falling off.
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| - You've mastered the long-lost art of clown bowling and hit 5 enemies with a rolling Tweedledee.
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| - You've found your first Sumo Slammer card. Keep building your collection!
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| - You've found every Sumo Slammer card in the game! Great job!
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| - You've discovered half of the Sumo Slammer cards in the game!
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| - You've achieved a combo of 50 or more, and upset 50 or so bad guys in the process.
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- The Prime Destructive (secret)
| - You've completed the game. Thanks for playing!
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| - Gotta bounce! You've defeated 2 enemies with a spinning Weatherhead Drone.
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| - You've defeated three especially aerodynamic enemies with a single Four Arms throw.
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- To Bee or Not to Bee (secret)
| - You've defeated the Queen Bee without taking a single point of damage! Amazing!
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- Torn-ay-do Torn-ah-do (secret)
| - Bet they felt that! You've completed "The Tornado" in under 15 minutes!
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| - You've shown remarkably little restraint by defeating 10 enemies with a single Ultimate Ability.
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| - You're heating up! You've defeated 3 enemies with a single use of Heatblast's combat ability.
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