That's an annoyingly-hard route of logic to refute. Bakugo frowns at the other merman for a few seconds since he's not willing to give a category. But prompted to search again is basically what he's doing down here anyways... so what's it really matter?

"Who the fuck's trying to impress you?" He bats the other man's tail away when it beckons at him, then swims after him. Eh, finding other weapons isn't a bad outcome. "What kind of technology's in your world then?" If he's never seen a gun and all.