8. Kyokushin Karate

Kyokushin Karate is the hardest style of Karate to learn as it is also the first ever full contact style of Karate. It is a style that can easily break bones and not just for the person who confronts the Kyokushin fighter, but the Kyokushin practitioner themselves while practicing. During sparring with fellow students, the practitioners fights with hard strikes. It is believed that going hard while training prepares you for real life.