Black Belt Kiyo is a leader of Fighting Dojo in Saffron City. At one point, Kiyo was the Gym Leader of Saffron City until his Gym lost official privileges as a result of a duel between himself and Sabrina. It has since become a place where he and his students train Karate. The player obtains a Hitmonlee or a Hitmonchan as a reward for beating Kiyo. Later, in Generation II and their remakes, he is found training at Mt. Mortar. To reach him, the player must travel through a lengthy maze section within the mountain. Upon defeating him, Kiyo will give the player a Tyrogue if there is an empty slot in the party. His Karate Gym in Saffron is disbanded now, but one of Kiyo's students can still be found there.
In Pokémon X and Y, Kiyo can be found in Lumiose City, trying to start a new Fighting Dojo at a small apartment he has rented in Centrico Boulevard. His business doesn't seem to be running smoothly, however, as a Battle Girl at the apartment tells that he's only getting new students signing up by telling them he's running a dance studio.
Before joining Kiyo, Tyrogue was a Pokémon that would cause mischief to any human. Kiyo battled Tyrogue with his Hitmonlee and Hitmonchan; however, Tyrogue was able to take both of them out. Kiyo then battled Tyrogue himself and won, thus earning Tyrogue's respect.
Mankey and Primeape were originally wild Pokémon that were friends of Tyrogue, and they would often cause mischief together. After Tyrogue fought with Kiyo and decided to go with him, they became sad that they had lost their friend, but Kiyo offered to take them along as well.
When the roller coaster Red and the gang rode on was separated, Red ended up in an underground area containing an abandoned amusement park. As Red was about to leave, Kiyo reveals himself along with his Hitmonlee and Hitmonchan. He tells them to stay and to try out his underground amusement park instead of the one above ground. Kiyo controlled the rides, but they all malfunctioned. Later he appeared as a hallucination of a mermaid. Kiyo's amusement park motivated Clefairy into making one of his own by stealing the one that was above ground.
Hitmonlee and Hitmonchan ♂
When Red was about to leave the underground area, Hitmonlee and Hitmonchan reveal themselves along with Kiyo. Later, they appear as hallucinations of mermaids.
None of Hitmonlee's or Hitmonchan's moves are known.