Waterfall can be found in the cave of origin. It's not too hard to miss on your way down to Kyogre, but if you did manage to miss it, go back and find it already!
Jasmine, from Pokemon GSC versions, gives it to you in Sunyshore, after you defeat Volkner. She can be found on the beach where you need to surf from Sunyshore to reach the Pokemon league.
you use strong Pokemon posibly water and lv100.
get these awsome pokemon remoraid, manatine, garydos, sharpedo,carvanha ,starmie and staryu
you can't you have to get poliwhirl and then use a water stone on it [which is underground]
If you were talking about brain speed and you were a Pokemon it would be you. Deal with it.
you defeat team galactic in the area and save the three pokemon from cyrus
I think you are talking about manaphy, you can get it from beating Pokemon Ranger and getting the manaphy egg then transfering it to Pokemon Diamond or Pearl. Or you can go to a manaphy event to get it.
in Pokemon diamond i got waterfall from a girl in sunny shore city ( the girl was on bottom floor north) hope it help:)
January 12
Remoraid is a pokemon(water type)
to evolve certain Pokemon
evee
swampert miltic
You have to get a manaphy from Pokemon ranger and breed it
In Diamond, you can obtain a Water Stone in the underground in Sunyshore City.
anywhere there is water
1 in a million chance
Just head north of sunny shore city go through the victory cave and use water fall and there u are