The Armored Nut is a small acorn located in the Wistful Wild in Pikmin 2. Located inside of a Creeping Chrysanthemum, the player will need to defeat it to obtain the treasure. The Creeping Chrysanthemum can be found near the Hole of Heroes.
"I've never tasted a nut quite like this. It's difficult to explain, but it tastes like...sorrow. PS: I can't shake the feeling that I've been here before. Aha! This must be the exact spot where I crash-landed last time!"
"This common, ordinary nut somehow reminds me of myself and fills me with sadness."