The Karate building in Saffron City, the Master there will give you the option of letting you choose between Hitmonchan and Hitmonlee. They will both be male so you will need to put 1 of them into the Breeding Center on Four Island with a Ditto and the Pok
You simply trade it.
firstget ditto and hitmonchan/lee from pke'mon leafgreen or firered into pok'mon sapphire or ruby then leave them in daycare then a few minutes then go back then the daycare man will give you an egg thenit will hatch into tyrogue
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
In my opinion, Hitmonchan but only cause he can have Thunder, fire, and ice punch You can get a Ditto and breed your choice on Island 4 later on and get a Tyrogue If Tyrogue's attack >20, it will evolve into hitmonchan at level 20 If " defence >20, you get Hitmonlee If Attack=Defense, you will get a Hitmontop at level 20
you get it if you use the Pokéradar in route 211.