Watch full OK K.O.! Let’s Be Heroes Season 3 Episode 12 full HD online. Cartoon video OK K.O.! Let’s Be Heroes Episode 103 online for free in HD. Rad starts feeling uncomfortable when K.O. begins exhibiting negative behavior that he picked up from him, Mega Football Baby and Bellbeefer. He tries to hide his love for kittens as well as him volunteering at the local animal shelter. When Mikayla infiltrates the shelter and begins attacking everyone, Rad has to convince K.O. to drop the macho thing.