Primal Dialga is a Pokémon that appears in Pokémon Mystery Dungeon: Explorers of Time, Explorers of Darkness, and Explorers of Sky. It is located at the pinnacle of Temporal Tower, and is the final boss of the game's main storyline. Primal Dialga is a form of Dialga who lost control over his ability to control time due to the collapse of the Temporal Tower. He is unable to show logical reasoning and only seeks self-preservation.