In the game's first level, one of the bosses that can be encountered is a giant dead lizard that does not need to be fought, as indicated by its sole message upon encountering it:


While most of the monsters in the game are passing references to pre-existing monsters commonly found in popular culture, this monster is unique in that the same character design originally debuted in a 1988 Japanese toy model kit line called "Gegebo Majyu" (translated to English as "Pukey Evil Creature"), where it went under the name "Torigaran" (translated to English as "Chicken Carcass"). Gegebo Majyu was manufactured and sold by Bandai, who also published and released Monster Party exclusively in North America one year later in 1989.