Dream Den is the name of the final dungeon in Pikmin 2 for the GameCube, the Dream Den is a fourteen-floor cave found in the Wistful Wild area. It is the residence of the game's final boss, the Titan Dweevil which is found on the bottom floor along with Louie. Because there are so many hazards and enemies in this place, bringing along 20 of each Pikmin type is advisable. There are 21 treasures to be salvaged here, five of them are on the Titan Dweevil's sublevel. There is a rest stop on sublevel 9 that can help you escape with your treasures so you can finish the rest of the dungeon later on.