Iwao

Iwao (イワオ, Iwao?) is a character in Yudetamago's manga and anime series Kinnikuman and it's sequel Kinnikuman Nisei (Ultimate Muscle). His name is changed to Rocky Slabb in the English dub of Nisei.

Iwao (イワオ, Iwao?) is a rock Kaijuu who first appears at an amusement park and is subsuquently defeated by Kinnikuman. He later joins forces with Kinkotsuman.