In the game proper, he’s cut as a boss, but makes an appearance flying around harmlessly in a hidden room in the first hub known as the "Old Tower". In older demos, there was a boss fought in the normal level style known as the Cheese Dragon, meant to be an Optional Boss.Development Gag: The game's hub world has multiple hidden areas featuring pieces of unused content.
The official Pizza Tower Twitter has been seen to retweet fanart of the game.The inclusion of Mort the Chicken was fully approved by the character's creator, Ed Annunziata - in fact, he liked the cameo so much he allowed Mort to be used royalty-free.
Before the meme was created, the song was called "A Secret in the Trees".