to catch another trainers Pokemon on pearl you have to have an action replay system or some kind of flash card
you dont
Action Replay
Only if you have the gameshark code...
If you mean another trainers Pokemon you have to use cheat codes
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't steal Pokemon however in Pokemon colosseum and Pokemon xd gale of darkness you can snag shadow Pokemon from trainers.
You cant catch another trainers Pokemon. However, if you find the same type of Pokemon in the wild you can catch it. Not even a master ball will catch another persons Pokemon.
go to walmart and buy a $20. game shark and fight Cynthia and make sure you can catch other trainers Pokemon and catch hers
Pokemon black has exclusive Pokemon and an exclusive location called black city where you can battle trainers with high leveled Pokemon and you can catch reshiram, while for white version it has more exclusive Pokemon, a exclusive area called white forest where you can catch lower leveled Pokemon of the trainer's Pokemon and you can catch zekrom.
This is the code for "Catch Trainers Pokemon" B6C5368A 08BE8FF4 B8D95CFE 06ED6EA1 E151C402 8A229A83 8E883EFF 92E9660D Press L+R in battle to be able to catch trainers pokemons as if they were wild.
Yes you can by using action replay to catch your rivals starter Pokemon with the code for catching trainers Pokemon
You cant catch any trainers Pokemon