Other Monsters In Gravity Falls

Now we have seen plenty of monsters not really as terrifying as facing a vampire or a werewolf in gravity falls, although they have been mentioned. Being the odd Gravity Falls you can assume that the mystical creatures that roam would be some more popular ones. Though the amazing Alex Hirsch who makes gravity falls is a peculiar one but still awesome. In my opinion, he was trying to not make it based on all the popular monsters, as in werewolves, vampires and etc. The lovely creature just doesn't want it to be a cliche and that's whats making it the best TV show. Although the many other less popular monsters like mermaids and zombies have been introduced, it seems that if it were to continue we might be able to see some vampires and werewolves.