All you do is get one, then teach it to a Pokemon that is able to learn it.
Teach one of your pokemon 'flash' using a TM/HM
get hm waterfall on route 18 and use it up the waterfall in lostlorn
Well in Pokemon black and white its no longer a HM its now just a TM if its not working in battle your game is messed up
up your rump
once you earn a certain amount of gym badges you will be able to teach a special move to your Pokemon( which will show up in HMS and tms part of bag).
Yes for HM Waterfall, Goldeen and Seaking can learn waterfall without using the HM by leveling up.
no Pokemon can learn rock smash by leveling up you have to get the hm.
Waterfall is an HM that, if taught to a Pokemon, allows you to climb up a waterfall.
HM04 Strength is found in Nimbasa City in the top-left building if you do not go up the stairs in the city.
Dive is not an HM move in Pokemon Platinum. There are, however, Pokemon that can learn it by level up.
Get the waterfall hm!
use hm Cut.