K.K. Slider: asjfhsdnvjdinnopcnsdiovsdvpdsnvspf

me: absolutely phenomenal you funky lil doggo

No, both Animal Crossing and Splatoon just use gibberish sounds as voice boops, with the latter implied to be an in-game language, with the latter somehow managing to make it different enough for Inklings and Octolings to imply that both speak different languages that Octolings sort of learned.

It is actually funny how they are essentially the Starfires of the Splatoon world.