You get it from the Black Belt King at Mt. Mortar.
Mt. Silver
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Tyrogue can evolve into one of three Pokemon. Tyrogue evolves into Hitmonlee at lv. 20 if its Attack is higher than its Defense.
you have to evolve tyrogue which you get from the guy in mt mortar
Tyrogue can be found in Mt. Mortar. He is given to the player by Kiyo, a non-player character, in the mountain cave.
Normally, you would battle him. He has a Hitmonlee and Hitmonchan, and will give away a Tyrogue upon defeat.
To catch the Tyrogue in Pokemon Pearl, use a Pokeradar. Find the Tyrogue on Routes 208 and 211. Pass through Rowan after getting the national Dex.
Tyrogue is a Fighting type pokemon.
Go to Mt.Mortar and find the karate master and battle him but leave one empty space in your party you have to beat him and he will probably give you Tyrogue.
You cannot get Tyrogue for Platinum. You can only do it by migrating, cheating or you can ask the little girl in Sandgem town (that tells where rare Pokemon are)where is Tyrogue. I tried this before but it took months for me to get Tyrogue's location.You might be lucky and get Tyrogue's location in days. P.S You will have to finish the Sinnoh Pokedex to do this.
In Pokemon Gold, Silver, Crystal, Heartgold, and Soulsilver the Karate King is in Mt. Mortar, East of Ekruteak City. He will have a Hitmonlee and Hitmonchan, and give a Tyrogue upon defeat if you accept it and have a space empty.
Yes you can catch Tyrogue in Pokemon Pearl. It's found on Route 208. You can also find it on Route 211-West. Hope this helped! =)