At level 22 in Diamond and Pearl and level 18 in Platinum/HeartGold/SoulSilver.
However, if you evolve it into Prinplup first, it is at level 24 for Diamond and Pearl and level 19 for Platinum/HeartGold/SoulSilver.
Also, there's no reason to use a TM for Bubble Beam when you can teach it much more powerful attacks like Surf later on.
Piplup learns moves such as Growl, Bubble, Water Sport, Peck, Bide, Bubblebeam, Fury Attack, Brine, Whirlpool, Mist, Drill Pick and Hydro Pump.
Wartortle doesn't learn Bubble Beam naturally, but you can teach it with TM11 at any time.
Piplup learns Peck at level 15
Hydro pump, Strength, Skull bash, Surf, Subbmishion, Sesmic toss, Water gun, Bubble beam, Bubble, Withdraw, Mega punch
rattata does not learn bubble at all, there isn't even a TM for bubble
Yep! :3
It doesn`t learn that move in any Pokemon games :(
Piplup, because Riolu should have the following moves: force palm, focus punch, focus blast and counter. Piplup: bubble, ice beam, bide and vaccum cut. UNBEATABLE!!!!!!!!!!!!!!!!!!
Piplup learns moves such as Growl, Bubble, Water Sport, Peck, Bide, Bubblebeam, Fury Attack, Brine, Whirlpool, Mist, Drill Pick and Hydro Pump.
Wartortle doesn't learn Bubble Beam naturally, but you can teach it with TM11 at any time.
there are no best moves it's just how you use them but i recommend a repeating move for defeating legendarys like bubble beam
Piplup can learn Aerial Ace from TM40.
It doesn't learn it by leveling it up you need to go to pastoria city and go in a house and trade the person a heart scale
Piplup learns Peck at level 15
piplup will learn peck at lvl 15
lvl 24 in diamond and pearl but in all games after it will be lvl 19 instead
Hydro pump, Strength, Skull bash, Surf, Subbmishion, Sesmic toss, Water gun, Bubble beam, Bubble, Withdraw, Mega punch