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The Krusty Krab red alert mode is the mode that Mr. Krabs uses in the restaurant for profit or protection from Plankton. It first appears in the episode "F.U.N."



It seals the Krusty Krab in thick metal sheets and turns off all of the lights except red alarms spread across. It seemed to be automatically activated on Mr. Krabs' notice.

"Pat No Pay"

The same type as in "F.U.N.," but with no darkening of the lights and no red alarms.

The SpongeBob Movie: Sponge Out of Water

The Krusty Krab gets covered in sheet metals. It seals off doorways and the order window. The metal sheets trap Squidward while he is at his workstation.

"Plankton Paranoia"

The same as the original, but the Krusty Krab now goes underground. Also, it is activated by a button.

Role in series


It is used to try to stop Plankton, but he uses a laser which makes a hole in the thick metal covering and gets away. SpongeBob ends up chasing him down.

"Pat No Pay"

It is activated after Mr. Krabs discovers that Patrick will not pay for the many Krabby Patties he ate.

"Patty Caper"

Mr. Krabs activates this mode in response to the secret formula having gone "missing," so he orders SpongeBob to go outside and take the briefcase from the SWAT Team truck that contains it, intent on framing him.

"Truth or Square"

Mr. Krabs activates the red alert mode to have a discussion with SpongeBob, Patrick, and Squidward about Plankton's plans to steal the formula.

The SpongeBob Movie: Sponge Out of Water

When Plankton uses a robot to lure Mr. Krabs outside the Krusty Krab, he manages to sneak into the safe within a penny. Plankton sees the only thing that stands between him and the secret formula: a pressure plate. Plankton retrieves an identical bottle - a ship in a bottle - and uses it to push the secret formula off the pressure plate, and match the weight so as not to alert anyone. However, when SpongeBob walks in unannounced, he startles Plankton, which causes the latter to tip the bottle off the pressure plate and the security system to activate.

A female computer voice announces "Initiating Lockdown Sequence" with a red alert sound blaring in the background. Metal bars come down over the windows in the office and metal doors slam shut between the office door and the kitchen. Metal sheets slide down rapidly over the exterior windows and the delivery window between Squidward's workstation and the kitchen. A metal cast of Squidward slams over him and traps him, as does a cast to a customer's beverage. The toilets seal shut, the Krusty Krab sign outside slams closed with a large padlock, and the exhaust funnel moves down into the Krusty Krab.

Mr. Krabs runs up just as the last thick metal is closing up the Krusty Krab and it slams shut before he can get inside. His panic, readily induced, causes him to have super strength and push the metal back open to go attack his nemesis.

"Plankton Paranoia"

It is activated after Mr. Krabs notices that the Krabby Patty secret formula isn't on the pillow, but it is later discovered that Patrick had mistaken it for a ketchup bottle.

Krusty Krab (VE)

Owner: Eugene H. Krabs

Current employees: SpongeBob SquarePantsSquidward Tentacles

Former employees: JimPatrick StarSandy CheeksPearl KrabsSheldon J. PlanktonKaren PlanktonMrs. PuffGary the SnailCarlStanley S. SquarePantsNot SpongeBobIncidental 105SpongeBot SteelPantsSpongeBob SquarePants clonesDoodleBobSquid DoodleLord PoltergeistDonut demon

Variations: 5-Star Krusty KrabKrusty FactoryKrusty Krab MuseumKrabby O'Monday'sKuddly KrabKrusty SpongeKrusty TowersSecret Krusty KrabRusty KrabKrusty PlanktonGranny Plankton's Krabby PattiesBubbly KrabKrusty SlammerTrusty SlabKrusty Bucket

Machines: Krusty Krab grillKrusty Krab freezerKrusty Krab cash registerPatty GadgetTrash chuteKrusty Krab televisionPinch-o-MaticOn-time percentage machine

Food: Krabby PattyCoral bitsDeluxe Krabby PattyEmergency Krabby PattiesKrabby Patty in a CanKrusty Kid's MealPipsqueak PattyKrusty DogKelp friesMonster Krabby PattyKrusty Krab PizzaPattyJelly PattyNasty PattyPretty PattySponge PattySpongy PattiesHash brownsExecutive TreatmentKrabby PâtéKrusty ChumKrabby SoupDouble Triple Bossy DeluxeMustardMayonnaiseSecret PattyRainbowgerAged PattyKing-Size Ultra Krabby SupremeSaladHot saucePicklesMilkshakeDanger PattiesNight PattyGreat pacific garbage patch

Commercials: Krusty Krab commercialKrusty Krab commercial (old)Krusty Kids' Meal Commercial

Vehicles: Patty WagonMobile Krusty Krab

Other: Patty vaultKrusty Krab red alert modeMimeco alarmLost and FoundKrusty KateringKrusty Krab employee hatKrusty Krab advertisingKrusty Krab playsetKrusty Krab Industries Labor AgreementKrusty Krab Rule BookEmployee HandbookPatty PalThe Eugene Krabs Memorial Wishing WellCondiment IslandKrusty PoolKrusty Krab talent showEating contest beltKrusty Krab drive-thruMr. Krabs' secret laboratoryNosferatuEmployee break roomKrabby LandKrabby PlaylandSesame seed jar

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