Mt. Bristle (Japanese: トゲトゲやま Mt. Spiny) is a dungeon in Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky. It is unlocked after completing Drenched Bluff. It has nine floors plus a peak, where the player and his/her partner battle Drowzee to save Azurill.
Oren Berries, Mix Elixirs, and Reviser Seeds are only in Explorers of Sky.
Entrance to Mt. Bristle
Drowzee and Azurill on Mt. Bristle Peak
Mt. Bristle peak