Kelpshake was a drink-shaped restaurant chain that only appears in the episode "Best Frenemies."
The store is a lime green building in the shape of a bottle. It served as competition to the Krusty Krab for a short time. The restaurant has a basic interior with tiled floors, a counter, chairs and a big line. They were placed all over Bikini Bottom in random places. A new marketing strategy Mr. Barnacle of Barnacle Products Incorporated came up with. The Kelpshake logo basically displays "KELPSHAKE" in a red font.
The restaurant has the ability to multiply. Despite the fact that it blocked traffic by spawning in the middle of a road, legal action was not taken until the end of the episode, and even then not for this reason.
Role in series
When Mr. Krabs realizes his profits are down, he finds out that the new restaurant, Kelpshake, has been selling a beverage called a Kelp Shake that is making Mr. Krabs lose the money the customers usually spend on drinks. Mr. Krabs believes the owner to be Plankton at first, but Plankton proves him to be wrong. The Kelpshake restaurants then start to multiply, and Mr. Krabs and Plankton realize that they are on every block. When Mr. Krabs and Plankton obtain a Kelpshake and try one, they realize that the Kelp Shakes have an ingredient in it that make them grow yellowish-green fur all over their body, this results in Kelpshake restaurants being closed and banned forever.
The owner of the Kelpshake restaurant may be a scientist like Plankton since he or she made it duplicate and chemicals are present in the drink.
The presence of the Kelpshake restaurants on either side of the Krusty Krab pokes fun at the similar locations of Starbucks stores unnaturally near other Starbucks stores.
Two Kelpshake restaurants are seen at both sides of the Krusty Krab - but when we see through the window from the inside (while Mr. Krabs and Plankton argue) the Kelpshake restaurants are not there. Perhaps another restaurant was multiplied afterward.