Can Greninja usually learn Gunk Shot in US?

Question

So I know he’s a hack but I wondered if he can usually learn Gunk Shot in Ultra Sun or if it’s part of the hack there used to ve a Pokemon Sun/Moon creator app where I think you could hack pojemon I bought but never figured it out anyway like I said is this part of the hack?

Answer 1

Greninja can't learn Gunk Shot normally, except as a Move Tutor move from the Battle Tree.

Source

Source 2

Comments

Thought so  but just wondered if it was part ofthe hack so i’d say yes it is?

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if the pokemon is hacked, I doubt the moves were obtained legitimately