>>50398401To me monster is used to describe unfamiliar creatures, especially those of frightening or scary origins. For example you have explorers from the 19th century referring to gorillas as human-like *monsters*, the loch ness monster and things of that nature, it can be applied to animals as these examples show. It's also used to refer to unfamiliar supernatural forces like vampires and demons and it can also be used to describe cruel behavior, see people calling Hitler a monster.
Overall, I think, in popular usage it refers to the unfamiliar and has nothing to do with apperance as supernatural entities like ghosts and vampires can look very human.
In the case of Pokémon it just refers in context to us, Pokémon to *us* would be unfamiliar creatures either by design, like chansey and blissey, and/or by their fantastical biology and powers. What is interesting about Pokémon is the marriage of these unfamiliar creatures and that of the familiar, making the Pokémon the natural world and fauna of their universe and making them the replacement of real animals. It's a subject that's fascinating on it's own.
