Ooh, lovely games. I have played 12 of these (and for 2 more, I've only played their successors - Splatoon 2 & 3, and Terranigma)

i love all of the Splatoons pretty much equally. i just picked 1 to represent the whole series. terranigma is fantastic as well. if i didn't have a mountain of nostalgia for illusion of gaia i might've put terranigma there instead.