you walk in the tall grass and when you FIND A POKEMON you BATTLE IT and when its hp is low you THROW A POKEBALL
You can use a Action Reply codes to catch other trainers pokemon.
you have to catch most of them and then you trade others for other Pokemon
NO you cant catch syther in Pokemon pearl
You can't catch a charizard in pokemon pearl.
The only way to catch either one of them would be to transfer from an other game, since they aren't found in Pokemon pearl.
neither of them is better, they are both the same, but in diamond, you catch dialga, and in pearl, you catch palkia, and you can catch different Pokemon in each game for example: you can catch this Pokemon in diamond, but not pearl but: you can catch this different Pokemon in pearl, but not diamond
you can certainly catch Dioxies in the game Pokemon pearl
You can't, it's impossible!!
Pokemon pearl is just like any other Pokemon game : you've got to catch em all
It's impossible to catch Jiratchi in Pokemon Pearl version.
You can't catch it in Pokemon pearl unless you have an action replay. But if you did catch it in Pokemon emerald, sapphire, or ruby, then you can migrate it
In Pokemon Diamond and Pokemon Pearl, there is no possible way to catch a Giritina. You can, however, either catch one in Pokemon Platinum or trade with someone who does have one. In Pokemon Pearl, you catch Palkia at Spear Pillar. In Pokemon Diamond, you catch Dialga at Spear Pillar.