Just Press L+R. WARNING WILL DELETE FIRST BALL IN SLOT!!
you have to see all of them. i had trouble finding a wormadam holding trainer.
yes but you dont know when the event happens
route 222 diamond/pearl - battle the sailors platinum battle - the 3rd fisherman from the left
yes
He is not in Pokemon: Sapphire. You will not be able to find him. He is in Pokemon: Diamond, Pokemon: Pearl, and Pokemon: Platinum. You will definitely have trouble finding him in Pokemon: Sapphire.
When you catch a Pokemon, it automatically update... Oh, you mean like if you don't have the national dex and you want, say a Blastoise? All you need is to see all the Pokemon in the shinnoh dex. (If you're having trouble finding them, write a question about it and hopefully, I'll answer)
use an escape rope ...i think
You're going to have to get the National Dex, and then catch either a Sharpedo or a Carvanha. Sadly, the possibility of getting one is very low, so if you have a Pokemon with the move Thief, then you can see if the Carvanha/Sharpedo has one, instead of going through the trouble with catching them.
You could pokedex and go to the seven islands (battle tower is there) and team rocket is causing trouble on island 5 (i think). Also, you can catch Pokemon from the johto region. have fun!
Do alot of missions and I am on diamond rank, having trouble beating dusknoir (the part before primal dialga).
I am sorry but you have to get it traded to you, because in order to see it you need the national dex. If you are having trouble go to a Pokemon website like bulbagarden or seribii and see where you can find each Pokemon. If you do that then it can assist you in completeing your pokedex. Plus are you a good gamer, if so join the group wikigamers: User:Wikigamershere all the best gamers of wikianswers join together to create a magnificient board of answerers.
The guy that owns the mansion on route 212 has a book with Manaphy's info in it.