Action Replay or Pokésav.
You give it to Arceus to change its stats and type.
nothing. that flute is for arceus
You can only get Arceus by an Event.
arceus is an event pokemon.
Yes, you can.
You can catch Arceus in Diamond, Pearl, or Platinum.
Pokemon Diamond, Pearl, and Platinum have Arceus.
you can not get arceus with no action replay
yes!!
You can catch Arceus in Platinum with the Azure Flute which is obtainable through Official Nintendo Events but otherwise, you will not usually be able to get an Arceus from someone.
yes you can get arceus on any sinnoh game
in your tuble