go to a man in the desert are (hes in a house) if you have bonded strongly enough he ll let empoleon learn it the best water type move and i also suggests to teach ice beam and blizzard to empoleon too.
In the desert area in the Battle Zone (the island with Stark Mountain) there is a house. A old man will teach the move to a starter poke at max friendship.
You can only teach Hydro Cannon to the water starters.
In FireRed and LeafGreen, there's an old woman on Cape Brink that will teach the move. The Feraligatr has to have a very high friendship with you, though. :)
Frenzy Plant If Empoleon, Hydro Cannon If Infernape, Blast Burn
I only the best one for Empoleon that's hydro cannon
he is the old man in the house near the sandstorm near stark mountain , but you can only teach hydro cannon, blast burn, and i think frenzy plant to starter pokemon.
Blastoise, Feraligatr, Swampert, Empoleon
There are 2 Move Tutors in Pokemon Diamond and Pearl. One is in Pastoria City. The other is in some sort of route I can't remember the name of. The second Move Tutor will only teach a specific move to a specific Pokémon. If you have a Venusaur, Meganium, Sceptile or Torterra, he will teach it Frenzy Plant. If you have a Charizard, Typhlosion, Blaziken or Infernape, he will teach it Blastburn. If you have Blastoise, Feraligatr, Swampert or Empoleon, he will teach it Hydro Cannon. The First Move Tutor requires a Heart Scale for his services. They can be obtained in the Sinnoh Underground. They are very rare, though I found 4 in 2 days ; )
you cant only in Pokemon pearl,diamond and platinum
swampert can not learn hydro cannon in R/E/S it can only learn hydro cannon in Pokemon pearl/platinum/diamond SEE YA
if you have empoleon go to route 228 you will see a old man he teaches hydro cannon but your empoleon has to really trust you.
There isn't a TM for Hydro Cannon. You water Pokemon learn it from a guy in the desert at route 228. His house will be by a pond. Go in and talk to him and he will teach your Pokemon Hydro Cannon (water types only). Note: You have to be well bonded with your Pokemon before he will teach it.
Empoleon learns metal claw, drill peck, aqua jet, hydro pump, i think icebeam, and hydro cannon. best movesare drill peck, hydro pump, and hydro cannon(hydro cannon makes you recharge though)
Feraligatr learns Hydro Pump at Lv. 63.
The only Pokemon that can learn Hydro Cannon are: Blastoise, Feraligatr, Marshtomp, and Empolion.
depends on the Pokemon
there's no TM for hydro cannon. u have to get national dex and tutor it.
Gyarados cannot learn the move Hydro Cannon. Hydro Cannon is a move that can only be learned by the Water type Starter Pokemon.
Frenzy Plant If Empoleon, Hydro Cannon If Infernape, Blast Burn
You will have to trade or make it learn hydro pump