This article may need more or better quality images.
If you have a better quality image for this article, please upload it here!

The Evil Sumo is a villain from The Islands. He and his Swinging Ninjas have taken over Grandmaster Sensei's castle in Sensei's Lost Castle. He is one of the two main boss fights of the Islands, the other being The Terrible Oni.

His main form of attack is smashing. With multiple brains, he can be difficult to kill, but with timed jumps and the helps of the lanterns on the ceiling, it is easy to figure out.

He can be obtained as 100% clear prize in his level.

Community content is available under CC-BY-SA unless otherwise noted.