Everyone in order (left to right, top to bottom): Wario, Bowser, Lego Mario, random filler Mii I made named Paul, Kayna, Entbrat, Pikmin, Yoshi, Fuzzy, another filler Mii named "BIG KING," Donkey Kong, Sonic, Link, the Mona Lisa, PomPom, Mammott, Nikki from Swapnote, Furcorn, a hamburger, Frisk, Kirby, Sans, Spike, Toad, Luigi, another filler Mii named "gaager bag," Parappa, Gumball, Darwin, Spongebob, Dry Bones, @Claystation5, Woody, @j-joffery-felan_mcp, Buzz Lightyear, Peach, me, @CyanCap90, Mario, @The_3merald_Totem, and @sharkyshar.
I call it "Pizzatown Island." I got some of the Miis from MiiCharacters.com, and most of the others were made by me. I have been playing this game for years, but I just decided to remove most of the random filler Miis and change some of the remaining ones, while adding new ones.