At the top of the sumo fight hill, near the marketplace.
There is no "Sumo Island." The island that features ancient Japan and a sumo challenge is Red Dragon Island. (see the related question)
we have to go to the man who told us about basho buying
Ask The question how do you beat red dragon island on answers.com to get your answer.
The island that has sumo-wrestling in it is the Red Dragon.
The champion sumo (Yokozuna) is inside the sumo match place.
You train at the Lake House (far left) but only after you beat the Yokozuna at the sumo match.
first you have to beat the sumo wrestler and then you have to become and ninja and you these special gadgets and then you can climb up the mountain
you cant
in the West Edo
You keep testing his temper, by pushing him a little and dodging his attacks. Then, his head blows off (not really, but it goes red) then you jump and dodge it and he falls of.
you go to the end of the place. then you talk to the sumo. you help him out in the arena. (to beat the sumo, you have to keep dodging him. when he gets angry you stay in the edge and he'll charge. jump over him and the sumo falls off of the stage. after that a mystery person comes to help you out. -6an13771