No. Primal Dialga becomes normal dialga when you defeat him, so its impossible to get Primal Dialga unless you cheat somehow(if you can).
Some legendary Pokemon found in Pokemon Mystery Dungeon: Explorers of Time include Dialga, Regigigas, Azelf, Mesprit, and Uxie.
You cannot get Primal Dialga in Pokemon Diamond, only in Pokemon Mystery Dungeon: Explorers of Time/Darkness.
No Dialga is in pokemon mystery dungeon explorers of time & darkness
It depends who your pokemon are. I found him very hard.
after you have beaten dialga. you and your partner can evlove after you have foiled darkrai's plot and rectuited dialga and palkia
you have to defeat him again after graduating from the guild and he will join you
You can't get Dialga in the start of the game! You can recruit Dialga after the 20 capters in the 2nd story.
At least level 50
you need protect for Bulbasaur and your partner
NO, Unless you have Dialga Lv 56 and Palkia Lv 85
You must have recruted dialga and palkia and finished marine resort
throw a sleep seed at him and just pound him with power attacks