Ben Tennyson has a soft spot in Sumo Slammers Knockdown game. One night, he was playing an all-nighter of Sumo Slammers Knockdown Marathon., The next thing he knows, he was in the game. Somehow, he was zapped into the cyber world and he has to find a way out. But before he could focus on finding an exit, he still has to help Sumo Slammer retrieve his special items from the evil hands of Kenko. A world filled of adventure awaits you in Sumo Slammers Knockdown and the only one who can beat Kenko is Ben Tennyson. Enjoy a day with Ben 10 in The Ultimate Warrior.