If you started with it then you wouldn't have to start over. You will have to trade or use global trade if you don't want to start over. After you defeat the elite four find a ditto (unless your starter is female) then breed one of yours, someone will probably trade the baby starters on Global Trade.
No. No you can't. You must trade or start over.
You get a Masterball when you get a perfect in the lottory, but appart from that you are unable to get another one without starting again on a different game and trading it over.
Trading is the legittimate way, mind you it does involve starting the games all over again many times to get all pokemon. The other easy but cheating way it Action Replay
He doesnt appear in game without trading over
trading over a different game, action replay, or (maybe) a Nintendo event
ummmm alot. Over 100, and then theres sapphire trading aswell....
Shaymin is only avalible through an event, which is now over. :(
Yes, but you have to trade it/send it over to another game. when it's send over it evolves into Gengar.
you cant.
No not really. You get Mew through speicial events. Try trading over at the GTS.
the only way to get the azure flute is over wi-fi trading its a reward
The opposite of under the counter trading