The Snail is a character that the creators of Adventure Time hide in almost every episode. He's seen making cameos, usually waving at the screen. His cameos are a running gag. Snail also transport himself in Fionna's bag.
- Its running gag of appearing at a certain moment, usually hidden, could be a reference to "Where's Waldo?" It's also similar to Pandaman of One Piece series, and the Black Cat in the Trigun series. It is also similar to the Bloody GIRs from Invader ZIM, the "Hidden Mustachios" in the "Annoying Orange" series, Derpy Hooves, Lyra Heartstrings, Bon Bon, and Carrot Top in My Little Pony: Friendship is Magic, and it even shares its form with the hidden snail of Blue's Clues.
- The Snail's eyes are below where an actual snail's eyes are.