Pokemon to be exact dimond and pearl version on a ds
You have to transfer Arceus from one of the older games using the poketransfer
arceus is not in those games. so you cant. and if you could, it would be EXTERMLY hard!!!
You dont get Arceus in HeartGold. You need to trade one from another HeartGold or SoulSilver or trade one from the Sinnoh region games. WARNIG: IF YOU HAVE AN ARCEUS ON BLACK OR WHITE YOU CAN NOT TRADE IT BACK TO THE JOHTO OR SINNOH GAMES.
That would have to be the Pokemon Arceus
You cannot get Arceus in Pokémon Emerald because Arceus wasn't made for Pokémon Emerald so there is no data for it within the game. Arceus was only made for Pokémon Diamond and Pearl as well as future games.
ATM if ur in Australia (sydney), then go to the games counter at KMART, and ask for arceus (MUST HAVE EITHER PLATINUM, PEARL, OR DIAMOND) and you will receive arceus lv100
Arceus is not available in HeartGold. Arceus is an event Pokemon, and cannot be found naturally in the wild. You will have to either cheat to get it, trade for it with a friend, or get it from one of your other games through Pal Park.
You could trade it from Platinum or you could use Wi-Fi to use the Nintendo Event: Arceus Special. If you are from Australia you can go to EB games and get Arceus for free in November
Arceus cannot be caught legitimately in ANY pokemon game.
Arceus is not obtainable in the Heart Gold and Soul Silver games.
There are no codes for any of the core Pokemon games.
diamond and pearl. Hope this helps.