You have to get a Haunter, then trade it to another game.
you go into the old chateu and you go into the room with the picture looking at you. you'll find one there
getting what
There is no way of getting all beginner Pokemon without trading.
Manaphy can only be obtained through events or trading. To obtain a Manaphy, one must attend a Nintendo promotional event or trade with a trainer who already has obtained Manaphy.
you cannot catch a Pokemon without a ball...however you can get Pokemon through trades or from another trainer in the game
By leveling up, trading for them, or getting a member allowance.
you cant get him without trading
You may watch youtube tutorials, or you can watch many movies that involves many swordsmanship in it.
The only way to get Shaymin in Platinum without cheating or an event is through trading it with a friend.
It really isn't possible without trading
There is no legitimate way to evolve it without trading.
i dont really know
You can get Bulbasaur by trading from FireRed or LeafGreen. Deoxys and Mew are only available through trading with others and special Nintendo Events.