Dialga is found in Pokemon diamond.
although he can only be caught once (unless you restart the whole game again!)
How do i know because i have Pokemon diamond, pearl, platinum and heart gold.
Dialga is not in that Pokemon Emerald. Back when that game was made, Dialga didn't exist.
You can't get Dialga in the start of the game! You can recruit Dialga after the 20 capters in the 2nd story.
It depends on which game. you can catch dialga on pearl with a code
Dialga, Palkia, Arceus, and giratinaare not in this game
you can find dialga at the top of mount . cornet at spear piller in the diamond game.
With luck and with the right game you can get rare colored or shiny dialga
Dialga is basicly in the game genderless but in the movies, he's male/boy.
Both.
No, Sapphire is a 3rd gen game. Dialga and Palkia were introduced in the 4th gen games.
he is NOT in the game
Dialga is a PokéBank legend; it cannot be obtained in X/Y unless it is transferred from an earlier game.
No, but you will be able to catch Palkia, Dialga or Giratina.