Mas Oyama’s Muteki Kyokushin is a Rochester, New York karate school dedicated to authentic Japanese full-contact Kyokushin training in the style of Mas Oyama. Founded and instructed by Shihan Rene Cruz, the dojo emphasizes physical training that strengthens body, mind, and spirit while cultivating courtesy, respect, humility, and fighting spirit. The school offers year-round training, a successful children’s karate program, guest instruction, and access to international camps. Its students and instructors regularly compete in Japan, Europe, Canada, and the United States, and the dojo states that its instructors are certified and trained in Japan.