you cant do the event but you still can get it
Yes, Arceus could be a clone of a clone of a clone and still work. However the in-game event only can take place once.
There isn't a date for the Arceus Event in Pokemon HeartGold (unless you mean the event where you get Arceus). When you send over any Arceus into your HeartGold game, the event is activated. You'll have to go to the Ruins of Alph in order to do the event.
yes you can get arceus on any sinnoh game
Arceus is a special event pokemon. The only way to get it is to get it at a special event or to hack the game.
No, unfortunately, you can't. Unless you use a game shark or action replay. To get Arceus, you have to do a Pokemon special event such as the 12th movie Arceus event. There are rumors that there will eventually be other Arceus event as well.
In Pokémon HeartGold and SoulSilver, Arceus is an event however bringing an event Arceus into the game will unlock something special in the game.
No, you cannot get Arceus with or without completing the game. The only way to get Arceus is by a Nintendo Event involving Mystery gift and the Azure Flute.
Arceus cannot be found through normal game play. You must get an Arceus from the Arceus event that took place quite some time ago in order to have it in your game.
Arceus is an event only pokemon. You need to wait for Nintendo to do a new event where you can get it over WiFi, or hack your game with Action Replay.
wait for an event or trade him from another game
There is no arceus event on gameboy games sorry! but for the DS one i would say to look up on your search engine (Google or what ever else) arceus event code for Pokemon diamond pearl or platinum hope this helps!
A shiny Arceus does exist in the game's coding however it is not possible to legitimately obtain it since Arceus' event item was never released. Arceus is not the only Legendary that you cannot get as a shiny as most new legendary Pokemon in recent games are coded to never appear as a shiny. Even though they won't appear as a shiny they still have the data for it to prevent glitches in the game's system.