You can berry blend in the Contest Halls
There is no poke blocks in sinnoh it is called poffins and to make them you need to go to hearthome city and have some berries with you as well and find the house that helps you make poffins.
you can make make poke bloks by going in a contest builing look for a box people are surronding it and go to a empty space and click the a bunttom
The blue ones.
Green!
There are various things you can do to make Golbat happy in Pokémon Sapphire. For example, you could feed it Poke blocks.
you have to give it poven or poke-blocks and train it
In emerald you get them in the contest hall by making them with berries.
Do that game almost perfectly with friends or the pokeblock master.
You need to use high level berries. yh what kind of berries list them!!!!!!! from here :
Get the poke block case and go to lilyove city and make poke blocks then just go to your bag and click on the poke block case and click on the poke block you want to feed to your Pokemon and then click on the Pokemon you want to feed it to. simple ? go to lilycove city and make the poke blocks. after that go to your bag and click on your poke block case (is in the key items pocket) and then click on the poke block you want to use then it will ask you what Pokemon you want to feed it to . tell it what you want to feed it to then it feeds it to the one you selected. its that simple.
Berries are for making poke blocks of for crushing if you want to make poke bloks you go to the contest house in lilly cove if you want to crush them you go upstairs and talk to the middle lady for that you will need a wirless connection.
In the contest place( in lilycove city that has the big poke-mart)but first you have to get a poke-block case at the front desk of the contest place.Then to the right there will be berry blenders that you have to do with somebody. Then those will make berry-blocks.