Pokémon Legends: Arceus raised a LOT of questions about the history of the Pokémon universe. Today, we are tackling one of them. Why are the regional Pokémon from the game MISSING in the later games? One word: EXTINCTION! That's right, something caused the Pokémon to die off, leaving the current world without them. What was that cause? Well, it was YOU - the player! Yep, it's all your fault. So sit back and I'll tell you why.