well... once you encounter a Pokemon, run, save, and turn off your DS. turn it on again. keep encountering the Pokemon and try it again and again till shiny...
be a total doosh
You can't. The only way to get it is to catch it on Sapphire and migrate it, trade for it at the GTS, or use a cheating device to obtain it.
u can't
You cannot obtain Arceus without hacking or cheating.
You can't get a Phinoe without cheating since the event to obtain a Manaphy (Phinoe's parent) has passed. Of course, you could always get a friend with action replay to trade you one, since it is very easy to obtain the Manaphy Egg with an Action Replay.
This is a rumor of how to get it.
It is an event where you can obtain MEW. MEW is a Pokemon that you can only obtain in an event, or hacking.
It is impossible to obtain a Mew in Pokemon Emerald outside of Nintendo events without cheating or trading from another game.
There used to be an event, but now, Arceus is impossible to obtain without the use of a glitch or cheating device.
yes, but it requires an action replay code.
Arceus cannot be legitimately obtained in SoulSilver or HeartGold; it must be traded. As for how to obtain it in Diamond, Pearl, or Platinum, it's only available in an event or by cheating.
It is impossible to obtain a Porygon2 without trading. You can get a Porygon and trade it with an Up-Grade or you can get a Porygon2 from the GTS but there is no way to get Porygon2 without trading.