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Sumo Slammer Smackdown (video game), in which Sumo Slammer main character Ishiyama, fights and battles against the shape-shifter Kenko, his arch enemy. In one episode, Ben and Gwen wound up in the video game. The Omnitrix is altered to make Ben find Omnitrix holograms. It is one of Ben's favorite games.
There are three colors of card shown in the series.
The 3rd most powerful card
The 2nd most powerful card
The most powerful card
Sumo Slammer DigiDownloader
This device downloads songs from Sumo Slammer Smackdown.
In the episode Monster Weather, is revealed that there is also a Sumo Slammer TV show. Ben references Alien Force while watching the show. The version of Sumo Slammers that he watches now is called Sumo Slammers: Hero Generation. Hero Generation was the working name for Alien Force. It takes place 5 years later than the original Sumo Slammers, with the villain from the original joining up with the Hero, a reference to Kevin joining up with Ben in Alien Force. Ben even references how Alien Force wasn't as popular as the original, by saying that Hero Generation was all messed up and what not. Then he talks about another series that will come after Hero Generation which will be more like the original, referring to Ben 10: Ultimate Alien. (Possibly the third series of Sumo Slammers is Sumo Slammers: Evolution)
In one Alien Force episode, Ben mentions there will be a Sumo Slammer movie, which made Kevin seemed excited.
- Kevin appears to have been a fan of Sumo Slammer as a kid, but appears to have last interest in it (possibly due focusing most of his free time on his car or spending time with Gwen). He may still be a casual fan.