Go to Pastoria city if you have Diamond, Pearl, or Platinum and give to this guy and he'll make your Pokemon remember moves. If you have Soulsilver or Heartgold, then go to Blackthorn city and go to the move deleter's house. The guy that will make your Pokemon remember moves is wearing a pink shirt and blue trousers.
You can take your heart scales to a house in mistralton city where a woman will reteach a pokemon any move it can learn up to its level. also in the house is the move deleter to delete those pesky hms
If you talk to this one dude in Pastoria City he'll let your Pokemon relearn moves they forgot when you raised them.
You use heart scales to teach a Pokemon an old move that they have forgotten.
you can go to a move tutor and he will teach you a move for one heart scale
you use heart scales in heart gold with the move re-learner in blackthorn city.
Hope i helped
in pastoria city, i don't know where he is in firered though
go underground and dig for treasure with your explorer kit then go to treasure once u have it and push a on it go to put in bag Your welcome
you use it on move tutors to teach your Pokemon moves
Check the average scale. I was told the have 4 chambers like us.
In Pastoria City (im pretty sure) just check every house and he should be a fat guy standing next to some books. Good Luck!
catch a luvdisc, most of the time they will be holding a heart scale. fish for them. no, you can't buy a heart scale.
The heart scale is used as a payment for the move tutor, or you can sell them.
Catch a bunch of luvdisc they can hold heart scale.
You can find them underwater and if you catch a luvdisc they may be holding a heart scale.
to get a heart dive
In Pokémon Crystal (GBC), there is no Heart Scale item. The Heart Scale item was introduced to the Pokémon video games in Generation III (3) (Ruby/Sapphire/Emerald). Thus, you cannot get the Heart Scale in Crystal. There is no Generation II-III trading, so there is no possible way to use the Heart Scale in Pokémon Crystal Version, sorry!
in the underground
There's a man in Fallabur town who will re-teach a Pokemon a move for a heart scale. But you must find a heart scale, they are in several places on the map but are mostly in or near water.
move tutor house one heart scale - one move taught
you can buy a heart scale at the pokeathalon for like 200 pts. but only on certain days
you use it for the move maniac who reteaches your Pokemon a moves for one heart scale
Heart scales are found in cianwood? i never knew that! you can get heart scales in the pokeathlon too. also a guy in blackthorn will trade a heart scale to make Pokemon remember moves