You can unregister them but you can't remove them from your pack
Key items are impossible to trade or remove, except to Pokémon Colosseum.
To remove key items in Pokémon Emerald using cheats, you can use a GameShark code. One common code is "BFF956FA 2F9EC50D," which allows you to remove key items from your inventory. Activate the cheat, and then access your bag; the key items should be removed. Remember to disable the cheat after use to avoid unintended effects.
it is impossible to do that unless you start the game over again and don't collect the item you don't want
new mauville after you get a key from Wallace
Go to your key items, then select your bike, then set to register, that way every time you press select you'll be on the bike and then you can just ride.
Ruby & Sapphire Key
Key items are impossible to trade or remove, except to Pokémon Colosseum.
To remove key items in Pokémon Emerald using cheats, you can use a GameShark code. One common code is "BFF956FA 2F9EC50D," which allows you to remove key items from your inventory. Activate the cheat, and then access your bag; the key items should be removed. Remember to disable the cheat after use to avoid unintended effects.
it is impossible to do that unless you start the game over again and don't collect the item you don't want
you can't delet key items in any Pokemon games.
new mauville after you get a key from Wallace
I thought that there was unlimited space for key items. How many items do you have and how many more key items do you need?
It´s easy: First go to your bag. Then go to your key items. Select the Fishing Rod (if you have one). Press use.
You can't. You can re-arrange them so that the ones you want are at the top using select, though.
Go to your key items, then select your bike, then set to register, that way every time you press select you'll be on the bike and then you can just ride.
As far as I know there is no code for key items.
you click use then click a Pokemon then remove an attack to be replaced with the TM u want. they are found in the TM case in the key items pocket.