get action replay
no you only can get one from prof.Elm
Cant you can only on Pokemon heartgold search for how do you clone items in Pokemon heartgold and my answer will be there
You cannot go underwater in HeartGold. You could go underwater in Sapphire, Emerald, and Ruby, but not in HeartGold. Items are not underwater in HeartGold, either.
you can never beat a pkmn game it is unlimited
you cant
items in saffron are the magent train pass
You can, but only hold items( Quick Claw )when you migrate them from Sapphire.
Use items.
its all in the timing
To get hippopotas in heartgold and soulsilver you need to go to safari zone and use special items.
An ability can do that also some items
Unlimited. As many as you want.