|Appears in||Pikmin 2|
|Treasure Hoard Number||29|
|Series||Sweet Tooth Series|
|Location||Cavern of Chaos|
One of the treasures in Pikmin 2, the Impenetrable Cookie (大がんこ) is found inside of a Puffy Blowhog on Sublevel 7 of the Cavern of Chaos, which is in the Wistful Wild. It is actually a hard, possibly burnt, chocolate cookie. It takes eight Pikmin to carry, and is worth x25.
"As I grow older, I've observed that I am becoming crankier. Today, I flew off the handle over a trifling matter. I feel like such a fool... I must learn to control my cantankerous temper! I can't allow my bad attitude to erode teamwork on this vital mission."
"It is hard. Really hard. Too hard. So hard that you're not sure you can eat it, even though you must. This hard snack is infused with the essence of stubbornness, and you are powerless to resist it."