The City Monster is a minor character of Happy Tree Friends.
The City Monster is a large, green, alien with scales, tentacles, fins, sharp teeth, and a fish-like face. How it got to earth and where it actually came from is unknown. The monster at first attacks the city by destroying several buildings. It faces up against Cubtron, ready to fight. When Cubtron ends up jumping into the monsters tentacles, the monster immediately starts to act maternally towards Cubtron, feeding and burping him. This results in Cubtron vomiting all over the city, killing Mime, Toothy, and Disco Bear.