Go to a Poke Mart, select "Sell," and sell the items that you want to sell. Note, however, that there are items that you cannot sell such as key items.
At the pokemart
To sell for quite a lot of money
At this time we do not sell: Electronics Damaged items Area rugs
You can't.
No
The other method of obtaining money in Firered is to sell your obtained items there are some items that are useless for you and your pokemon that you can sell for some cash those items are: Nugget, Pearl, Big Pearl, Star Piece, and Stardust. You can sell any item that you can have multiple quantities of such as Potions and PokeBalls so if you have too much of these items feel free to sell them to any PokeMart.
N.o. No
You can't :/
On Two Island talk to the shopkeeper if you have progressed through the game enough he will sell timerballs as well as other items like repeatballs and lava cookies.
At the pokemart
Yes they do
You can't sell items.
To sell for quite a lot of money
Yes
Hack. DO NOT SELL!
You can look at Gamestop.
you cant sell items, but you can sell the account including the item.