✔ 最佳答案
There is a house in route 228 (the desert route). You will see a old man there. If your Empoleon (帝王企鵝) is happy enough (two small hearts or two large hearts), he will teach it hydro cannon (水柱加農炮).
P.S. He will teach any starters in final form (#003,#006,#009,#154,#157,#160,#254,#257,#260,#389,#392,#395) their respective elemental beams if they are happy.
(frenzy plant, 150 power, 90 accuracy, learnt by grass starters)
(blast burn, 150 power, 90 accuracy, learnt by fire starters)
(hydro cannon, 150 power, 90 accuracy, learnt by water starters)
Be careful since those move are like hyper beam, they require your pkmn to rest during the round after the attack!