Impenetrable Cookie

Impenetrable Cookie
Number	29
Series	Sweet Tooth Series
Value	× 25
Weight	8
Maximum carriers	16 Pikmin
Location	Cavern of Chaos
Challenge Mode levels	Snack Pit

This article is about the darker swirling cookie. For the lighter one, see Compelling Cookie.

The Impenetrable Cookie (大がんこ^?, lit.: "Giant-Stubborn") is one of the treasures in Pikmin 2. It is actually a hard, possibly burnt chocolate cookie.

Collecting the treasure

The following article or section contains guides.
The strategies shown are just suggestions.

The Impenetrable Cookie is found on Sublevel 7 of the Cavern of Chaos. It is found inside of a Puffy Blowhog.

Notes

Olimar's journal

“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.”

Sales pitch

“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.”

Gallery

The Impenetrable Cookie in the Cavern of Chaos.
The Impenetrable Cookie being analyzed.
A chocolate cookie from the real world.

Names in other languages

Language	Name	Meaning
Japanese	大がんこ^? Dai Ganko	Giant-Stubborn
French	Biscuit Impénétrable	Impenetrable Cookie
German	Betonkeks	Concrete Cookie
Italian	Biscotto massiccio	Bulky Cookie
Spanish	Galleta impenetrable	Impenetrable cookie

Treasure Hoard
Succulent Series	Cupid's Grenade • Sunseed Berry • Combustion Berry • Seed of Greed • Disguised Delicacy • Insect Condo • Citrus Lump
Nature's Candy Series	Spiny Alien Treat • Anxious Sprout • Child of the Earth • Love Nugget • Infernal Vegetable • Anti-hiccup Fungus • Toxic Toadstool • Growshroom • Onion Replica
Xenoflora Series	Science Project • Pilgrim Bulb • Arboreal Frippery • Conifer Spire • Armored Nut • Corpulent Nut
Gourmet Series	Meat of Champions • Hideous Victual • Meat Satchel • Taste Sensation • Triple Sugar Threat
Sweet Tooth Series	Compelling Cookie • Impenetrable Cookie • Bug Bait • Imperative Cookie • Comfort Cookie • Succulent Mattress • King of Sweets • Enamel Buster • Diet Doomer • Pale Passion • White Goodness • Chocolate Cushion • Sweet Dreamer • Confection Hoop • Pastry Wheel
Paleontology Series	Possessed Squash • Fossilized Ursidae • Colossal Fossil • Leviathan Feather • Olimarnite Shell • Fortified Delicacy • Scrumptious Shell • Memorial Shell • Mysterious Remains (US/EU only)
Ancient Secrets Series	Crystal King • Future Orb • Gyroid Bust • Unknown Merit • Lustrous Element • Mirrored Element
Cook's Arsenal Series	Vorpal Platter • Invigorator • Milk Tub • Broken Cooking God (JP only) • Merciless Extractor (US/EU only) • Broken Food Master (US only) • Divine Cooking Tool (EU/JP only) • Utter Scrap
Tortured Artist Series	Decorative Goo • Master's Instrument • Manual Honer • Implement of Toil • Heavy-duty Magnetizer • Harmonic Synthesizer • Emperor Whistle • Director of Destiny
Modern Amenities Series	Sud Generator • Flame of Tomorrow • Lightning Bolt (JP only) • Impediment Scourge (US/EU only) • Family Raft (JP only) • Dimensional Slicer (US only) • Time Capsule • Lip Service (US/EU only) • Mirrored Stage • Behemoth Jaw
Frigid Series	Joy Receptacle • Fleeting Art Form • Danger Chime • Spouse Alert • Innocence Lost • Essential Furnishing • Icon of Progress
Hyper-technology Series	Temporal Mechanism • Mystical Disc • Vacuum Processor • Indomitable CPU • Network Mainbrain • Space Wave Receiver • Sulking Antenna • Nouveau Table
Industrial Set	Omega Flywheel • Spirit Flogger • Superstrong Stabilizer • Repair Juggernaut • Adamantine Girdle • Massage Girdle • Superstick Textile • Exhausted Superstick • Furious Adhesive
Husband's Tears Series	Petrified Heart • Eternal Emerald Eye • Regal Diamond • Tear Stone • Princess Pearl • Crystal Clover
Space Love Series	Unspeakable Wonder • Essence of Rage • Essence of Despair • Essence of True Love • Essence of Desire • Pink Menace • Joyless Jewel • Frosty Bauble • Gemstar Wife • Gemstar Husband • Universal Com
Crystallized Emotion Series	Omniscient Sphere • Crystallized Telepathy • Love Sphere • Crystallized Telekinesis • Mirth Sphere • Crystallized Clairvoyance
Dream Series	Maternal Sculpture • Extreme Perspirator • Rubber Ugly • Paradoxical Enigma • Silencer • Wiggle Noggin • Coiled Launcher • Magical Stage (EU/JP only) • Boom Cone (US only) • Flame Tiller • Doomsday Apparatus • Aquatic Mine • Ultimate Spinner (JP only) • Stupendous Lens (US only) • Air Brake • Worthless Statue • Priceless Statue • Boss Stone • Luck Wafer • Talisman of Life • Strife Monolith • Chance Totem
Blast from the Past Series	Dream Architect • Stone of Glory • Glee Spinner • Cosmic Archive • Remembered Old Buddy • Fond Gyro Block • Memorable Gyro Block • Lost Gyro Block • Favorite Gyro Block • Treasured Gyro Block
Mystical Energy Series	Proton AA (US/EU only) • Proton X (JP only) • Durable Energy Cell (US/EU only) • Omegatron (JP only) • Courage Reactor (US/EU only) • Yell Battery (JP only) • Fuel Reservoir (US/EU only) • Revised Eternal Fuel Dynamo (JP only) • Love and Courage Reactor (JP only) • Alternative Reactor (JP only)
Massive Receptacle Series	Container of Knowledge (EU only) • Container of Sea Bounty (EU only) • Drone Supplies (US only) • Patience Tester (US/EU only) • Endless Repository (US only) • Perfect Container (EU only) • Fruit Guard (US only) • Nutrient Silo (US/EU only) • Stringent Container (US only) • Survival Container (EU only) • Endless Repository (EU/JP only) • Open Architecture (EU/JP only) • Permanent Container (EU/JP only) • Empty Space Container (EU/JP only) • Open Archive (EU/JP only) • Plentiful Tank (EU only) • Drone Supplies (EU only)
Survival Series (US only)	Survival Ointment • Healing Cask
Mystery Disc Series (JP only)	Estimated Object GF • Coiny The Refined • Milky Team • Milk Lid • Good Old Memories • Paper Slider • Understood Person Symbol • Flying Saucer • Universally Best Art • Inviting...Thing • Idea Assistant • Seat of Enlightenment • Milky Cradle • Anywhere Floater
Ancient Ad Series	Abstract Masterpiece (in this series in US only) • Optical Illustration (US only) • Thirst Activator (US only) • Yellow Taste Tyrant (US/EU only) • Salivatrix (US/EU only) • Gherkin Gate (US/EU only) • Alien Billboard (in this series in US/EU only) • Activity Arouser (in this series in US only)
Odd Logo Series	Alien Billboard (in this series in JP only) • Hypnotic Platter (US/EU only) • Massive Lid (US only) • Pondering Emblem (US/EU only) • Happiness Emblem (US/EU only) • Abstract Masterpiece (in this series in EU only) • Activity Arouser (in this series in EU only) • Quenching Emblem • Drought Ender • Creative Inspiration (US only)
Explorer's Friend Series	Spherical Atlas • Geographic Projection • Prototype Detector • Five-man Napsack • Brute Knuckles • Repugnant Appendage • Stellar Orb • Forged Courage • Dream Material • Justice Alloy • Amplified Amplifier • Professional Noisemaker • The Key
Titan Dweevil Series	Shock Therapist • Flare Cannon • Comedy Bomb • Monster Pump • King of Bugs
Note: The Nintendo Switch port uses the US treasures in all regions.