The best thing to do is fight ALL the trainers.They will probably have most Pokemon for the pokedex.Make sure you battle the ones in Victroy Road they will have evolved traded Pokemon and happiness and many that you don't seen or have.
To summon it up.FIGHT ALL THE TRAINERS
you have to see all of them. i had trouble finding a wormadam holding trainer.
on Pokemon pearl you only see 1
You can if you get an action replay DS and use a cheat to see all of them . Otherwise.. Good luck.
you need to see all the Pokemon in sinnoh region One Pokemon I found hard to see was the riolu, but you get it from Riley when its in a egg but basically you do nothing. Let it evolve.
Yes, there is a cheat for all Pokemon to be lvl. 100 in Pokemon pearl. To find more cheats, go to youtube.com and type in the search box, cheats for Pokemon pearl.
You need to see all Pokemon in sinnoh
there are 150 kinds of Pokemon that you can see and/or obtain. Unless you have friend trade you Pokemon that you can only get in pearl to you, you'll never obtain them all. In Pokemon diamond and pearl all you have to do is see the Pokemon and you get its data unlike the older versions where you have to obtain them.
check marriland.com's pokedex it shows you all the Pokemon if you type the in the Pokemon you want to see.
you see all Pokemon then click the pokedex then see the Pokemon you want then click area on the pokedex hoped i didnt helped
you have to see all of them. i had trouble finding a wormadam holding trainer.
You battle people or look for them in the wild
You have to see all the Pokemon in the Sinnoh Pokedex.
By Trading.
check your national pokedex check serebii.net :)
Battle Every Single Character in the Game to meet all the Pokemon in Pokemon Pearl.
Get an Action Replay and select 100% Pokemon on pokedex.
You can get the Pokemon in Sinnoh. If you go to Pokemon.com, you can see them.