First use the master code
72BC6DFB E9CA5465 56671F3A 6F4F4D6B
Then buy master ball with this code
CF1BCCE4 F26C57D9
And when your battling throw a master ball but you've got to press L+R.Hope it helped.
If you want to you can try the other modes like single or knockout. Not your thing? Train more Pokemon and get all the Pokemon in the pokedex. And meet some other Pokemon leafgreen and Pokemon firered players.
You can't catch or obtain other trainers Pokemon in emerald.
You can cath alot of Pokemon That helps... But really, there are many of them. all of them can be caught. except other trainers. but with a gameshark, you can catch all Pokemon you meet. but other trainers' Pokemon become bad eggs.
Never in any game of Pokemon can you catch every Pokemon on one version of the game you must use the other versions to get the rest. Unless you cheat but don't its not worth it.
You can use a Action Reply codes to catch other trainers pokemon.
You can't catch other Trainer's Pokemon. It is not an intentional feature in the website.
You can't other wise you have to trade from Pokemon Collosium
Unless there is a cheat code that allows you to, NO!The only games that you can catch other Trainers' Pokémon in are the GameCube games Colosseum and XD: Gale of Darkness. Even in those, you can only catch certain Pokémon from other Trainers.
If you really want to, use your masterball because it never fails. Masterball fails on other peoples Pokemon. I learnt from my mistakes... you cant catch trainers Pokemon it wont work with any type of poke ball(it would've been cool if you can catch trainers Pokemon though=)
same as eny other Pokemon game with a fishing rod!
You are not allowed to catch other trainer's pokemons on any of the Pokemon games. You may only catch Pokemon from the wild or receive them through other means (events, game corner, eggs, etc.)
Anything tbh you can defeat the Pokemon league again or catch other rare Pokemon:)