Kaio-Ken

Kaio-ken (界王拳, "Fist of the World King" or "World King Fist") is a fighting technique invented by King Kai. However, Goku is the only person ever able to successfully use it. It is a technique that multiplies the user's ki for a "heart beat", enabling them to inflict serious damage to opponents who are considerably stronger than them. After the introduction of the Kaio-ken, it became one of Goku's signature attacks; however, it became greatly overshadowed by his ability to become a Super Saiyan later on in the animated series and manga. While in the state, the ki aura's color becomes crimson. Even though the correct pronunciation is KAI-OH-KEN, in most English dubs it is incorrectly pronounced KAY-OH-KEN. In a Filler episode, he combined the Kaio-ken along with his Super Saiyan form to make Super Kaioken. This move was used against Pikkon in the Otherworld Tournament (however this was only filler and was never used again in the series.) That was the Kaio-Ken's last appearance. The manga's last appearance for the Kaio-ken was against Frieza.
Although it seems to be a great technique, unless you have the right powerlevel for it, it will put trememdous strain on your body, leaving your body entirely useless after its use.
Category:Attacks
Category:Techniques
Category:Offensive Techniques
Category:Rush Attacks
Category:Attacks used by Goku
Category:Power Ups