The Key
The Key.
Number 196
Series Explorer's Friend Series
Value Poko × 100
Weight 1
Maximum carriers 3 Pikmin
Location Citadel of Spiders
Challenge Mode levels Explorer's Cave, Novice Training, Lost Toy Box, Creator's Garden, Green Hole, Hot House, Brawny Abyss, Red Chasm, Trampled Garden, Twilight Garden, Cryptic Cavern, Concrete Maze, Collector's Room, Dweevil Nest, Cavernous Abyss, Snack Pit, Three Color Training, Hazard Training, Cave of Snarls, The Giant's Bath, Rumbling Grotto, Subterranean Lair, Hidden Garden, Abduction Den, Secret Testing Range, Breeding Ground, Cave of Pain, Bully Den, Sniper Room, Emperor's Realm
Artwork of The Key.
Concept art of the treasure.

The Key is a treasure in Pikmin 2, whose name is the only one among the treasures that describes itself exactly. It is quite obviously a large, golden key. The Key is found inside the body of a Beady Long Legs on the last sublevel (5) of the Citadel of Spiders. Besides from increasing the Poko total, The Key also unlocks Challenge Mode, which can be found in the Main Menu after the treasure has been collected. It is the only part of the Explorer's Friend Series that is not found in the Exploration Kit.

In Pikmin 2's Challenge Mode, this treasure is found on every sublevel of every one of the 30 levels. It is required to make the entrance to the next sublevel, or a geyser, appear, and is worth 100 Pokos.

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Trivia