BOBBY'S DREAM IS TO BECOME A SUPER-SUMO...
WAIT NO NO, SUPER-HERO!

It is not easy to master Superhero skills! You get 1 RIGHT MOVE after 10000 GOOF UPS!

Bobby loves his little sister Wiki. She is way more smart and also mischievous than him. At least, that is what she believes each time she uses him as a guinea pig for her "ex-prank-iments". But in the end, Bobby is the first she runs to when she is scared. Until that day, when a giant dog threatens her!

Bobby throws himself in front of the animal to save Wiki. He defeats the creature and thwarts without knowing it the Bad Spirit that had sent one of his agents to create chaos. The Bad Spirit Magic has been defeated that day! Bobby earns a scar and the gratitude of the Good Spirit that grants him a wish for his bravery and good deed. Bobby's dearest wish is to go big...Granted!

But...err...there is a glitch : he does not become this athletic super-hero but a huggable Sumo. With super-powers. All featured in the 10000 pages Book of Big Powers. Bobby and Wiki need now to master them in order to stop the Bad Spirit.'