he starts out with a level 29 primeape just go at that with anything you have then here is the hard part his level 31 poliwrath is something you want to go at with a phsycic type hope this helped! ( I just battled him so I should know plus there's even a guy who tells you fighting is weak to phsycic)
You probably skipped the sixth Gym Leader, Jasmine. Common mistake. You beat Chuck, get Fly, and surf to fight Pryce. But, you forget to fight Jasmine...
Chuck is the fifth gym leader of Crystal. He uses fight type. Also, he has Poliwrath, with is part water, so bring an electric to take it out quick.
fighting types, the gym leader is chuck
The Sixth Gym leader is Chuck, he has a Hiryama and a Poliwrath.
The 5th gym leader in Johto is Chuck. He is located in Cianwood City.
after you beat the 4 gym leader in hearthome city
You get Fly after you beat the 5th Gym Leader (Chuck). Chuck's wife will be outside the Gym, and if you talk to her, you will get Fly.
In Lavaridge gym.
primeape and poliwrath
go to hearthome city and fight the gym leader there
You get it after you defeat the Gym Leader Chuck, the woman in front of the Gym will give it to you.
u fight the gym leader