You cant enter cheats on Pokemon Diamond, the only is on a game shard or by mystery event maybe.
how do you get arceus whit cheats in Pokemon heartgold
You would have to trade it from Diamond, Pearl or Platinum. There is no in game Arceus in Heart Gold or Soul Silver.
Arceus had not been formally revealed when Explorers of Sky was made. While you can find a statue of Arceus, it does not appear as a Pokemon and is therefore not recruitable.
if it is for platinum, diamond or pearl there are technicly no cheats. but for mystery doungeon cheats just type in the following link:- www.cheats/pokemon mystery darkness//ds/.co.uk
Arceus is not avabile. Right now, hack or use cheats to get Arceus.
weel u cant basically
The only way that might work is through cheats. Otherwise you're out of luck.
Without cheats, you can only obtain Arceus through a Pokemon Event.
you can get arceus cheats