Sasquatch (referred to in-game as ??????, also known as The Sasquatch or Bigfoot) is a yeti, who became a mascot in August 2014. He made a first appearance in an unused clothing .swf file, and was labelled a mascot in Club Penguin's files. Meeting him allows you to obtain the Mystery Background.
He played a prominent role at the Puffle Party 2015, where he was hungry, and ate the cake in the Ski Lodge, that was supposed to be for celebrating the Lodge's renovation. Players followed him into The Wilds, where it was discovered the Sasquatch was just hungry, as O'Berries are not filling enough.
According to mascot scripts, he was frozen for a long time, and when he woke up, it was on his head.
In an interview with Aunt Arctic in issue #494 of the Club Penguin Times, Sasquatch mentions that he loves his "pointy hat" and that a penguin with a "nice green jacket" gave it to him a long time ago.
According to a fact file seen in the Club Penguin Magazine Issue #38, Sasquatch likes scratching his belly, and dislikes being spotted.
He was mentioned in a short "Island Rumors" section in issue #487 of the Club Penguin Times, on February 19, 2015. The article suggested that Sasquatch might be looking for something or someone.
In the Puffle Party 2015, it was revealed that he was looking for scaly food.
Sasquatch is another term for Bigfoot, a cryptid ape- or hominid-like creature that is said to inhabit forests.