It’s Halloween weekend, which means it’s time for ghosts, ghouls, and… Pokemon? You probably think of Pikachu and Charizard when you first hear the word “Pokemon” but there are actually some terrifying Pokemon that are downright creepy (and some disgusting). Here are the creepiest Pokemon in the ever-growing Pokedex. GengarThis iconic ghost Pokémon is from Gen 1. While Gengar may not look super scary aside from his sharp-toothed grin, Gengar is creepy because it literally wants you dead. According to an earlier Pokedex entry, Gengar was once a human itself and is now looking to create a travel…