You have to link up with friends or a friend.Then go to one of the ladies and then pick berry crush.
only firered and leafgreen.
you go in the direct corner with a buddy and do it. youtube.com/iglowindadark
You don't have to make berry powder because even if you did all you can do with it is give it to the old man who will give you items you normally couldn't get like energypowder but these items make your Pokemon less happy so you really don't need those items.
It carries berry powder which can be made using the berry crush machine in the Pokemon center it's located upstairs you must talk to the lady behind the far right counter with a wireless adapter connected she will save your game then you can choose Berry Crush have a friend join you then keep pressing the A button to crush the berries you put in the machine in order to create berry powder. Once you make some you can take them to the old man who gave you the powder to receive rare items from him ranging from Energypowder to PP Up.
at every Pokemon contest there will be a group of people and you will see them gatherd around talk to them and they will ask you will you like to make berries or if you mean the other go to the top floor and the middle lady at the Pokemon center you need a wirells adapter to make them
Weaken it to red hp, Paralyze it or make it sleep with thunder wave or sleep powder, use many ultra balls eventually you will get it.
No. Poke'mon Master
you cant... yet
all you have to do is battle people
defeat it
To berry crush you need two wireless adapters, a friend and some berries and the powder jar located in cerulean city, go up the escalator at any Pokemon center hook up the wireless adapter to your GBAorGBASP then talk to the lady on the far right she will ask you to go in the trade center or colosseum or berry crush, choose berry crush and have your friend do the same then pick a berry that says its good to make medicine have your friend do the same then press the A button repeatedely and you will receive berry powder.
A ditto with (any Pokemon you put in the day care accept for legendaries)