If you choose to catch one of the legendary Pokemon in diamond do you lose the chance to catch any others?
No you dont. no. you can still catch all the other ones. besides some like palakia. Unless you trade him.
The starter Pokemon you choose determines which legendary beast you can capture. If you choose bulbasaur, you can catch Entei, the lion Pokemon,if you choose squirtle,you can catch Raikou, the tiger Pokemon, and if you choose charmander,you can catch Suicune, the cheetah Pokemon. (You have to beat the Elite 4 and have the national pokedex)
If this is your first time to get a DS and he wants to play Pokemon what it recommended to buy Pokemon Diamond Pokemon Pearl or Pokemon Platinum?
if he has played a Pokemon game before and beat it, give him platinum. Platinum is much harder then diamond or pearl. If he can't choose, ask him if he likes attack or defense. If he says attack, give him diamond. Diamond's legendary is offensive. Pearl's is very defensive. So if he says defense, give him pearl.
You need to complete Pokemon Sapphire and Diamond and in Diamond you will need the National Dex. Go to the title screen of Diamond and press Start, then choose "Migrate from Sapphire" and follow the instructions. Choose the 6 Pokemon you want to migrate to Diamond, then confirm your choice. The 6 migrated Pokemon will be in the Pal Park and can be caught with 100% catch rate.
To breed Pokemon from Poekmon Fire Red to Pokemon Diamond you must put Pokemon Fire Red into the DS slot, turn the game on, select Pokemon diamond, press start and then in stead of pressing your file, scroll down until you see migrate from Pokemon Fire Red. This will bring you to your Pokemon Fire Red PC box and you can choose six Pokemon to migrate. After that you must go to Pal Park on…