You can't except if you have an AC (action replay). After you get an AC, find the cheat code to get an arceus. I perfer the Pokemon modifyer.
Originaly all legendaries do when you fight them... but Arceas...probably..
this site dosent know arceas is in soulsilver
i used my modifire cheat to get arceas made by legen
Yes I did It its awesome, Its name is arceus not arceas.
In the spear piller when you have an orae flute and play it and a stair case will apper and if you walk up it there is arceas
There are 2 ways that you can catch it.First,you need action replay.Second,there is a arceas event but passed
arceas with the ground plate, but pikachu when arceas has a water plate its all confusing
Dimond and Pearl Dimond and Pearl Dimond and Pearl Dimond and Pearl
No
yes
Arceas has to be caught in Pokemon diamond, pearl, or platinum, then traded to Soul-Silver and HeartGold.
no get regular dex and get arceas or get FLUTE an go to spear piller and enter hall of whatever