Frosty

Frosty is an unseen character mentioned in Fleeing the Complex in the "Presumed Dead" pathway. He is a living snowman that is locked up at The Wall who wears a short top hat, has a thin carrot nose, three coal buttons, a smile made out of four individual coals and two eyes also made out of coal.

After Henry made his way to the yard of The Wall, he has to find a way to sneak past Karl Pinkerton, Gnewt Stoneheel and Franz Pferd, who are guarding the gate. One of his options is to disguise himself as a snowman and sneak past them (which is named Costume). When Karl notices the snowman however, he thinks that it is Frosty, and the three guards open fire on Henry, killing him. The actual Frosty is never seen in the game.

Trivia

 * In The Henry Stickmin Collection Developer Commentary on Twitch, PuffballsUnited, the creator of The Henry Stickmin Series, stated that Frosty is currently locked up in the same building that Freddy Fazbear is locked up in.