Pokémon Mystery Dungeon: Blue Rescue Team is a role-playing game for the Nintendo DS where players assume the role of a human transformed into a Pokémon. Set in a world populated by Pokémon, players embark on rescue missions in procedurally generated dungeons alongside a partner Pokémon, aiming to save the world and return to their original human form.
You, a regular human, find yourself trapped in the body of a Pokémon in a world inhabited by Pokémon. Without any other choice, you go on rescue missions through randomly generated dungeons with your newly-acquired partner and friend to save the world and get back to your human life.