Karen's "kissy face" screensaver from "Grandmum's the Word" reappears when she kisses Plankton.
When Squidward turns on the Krusty Krab's security footage, a drawing of DoodleBob can be seen on the bottom of the table, referencing both "Frankendoodle" and "Doodle Dimension."
SpongeBob mimicking Plankton is a reference to "Mimic Madness."
Plankton turning into a genie when he is trying to open the Krabby Patty formula is a reference to "Spin the Bottle."
Squidward's claustrophobia from "Wishing You Well" is brought up again in the ending.
When Squidward turns on the Krusty Krab's security footage, the date 05-01-99 (May 1, 1999) can be seen on the bottom of the table. This is a reference to the airdate of "Help Wanted," the first episode of SpongeBob SquarePants.
This is the second episode to show Plankton's skinned form. The first is "Plankton's Regular."
This is the third appearance of Spot, the first being in "Plankton's Pet" and the second being in "Spot Returns."
This episode premiered in Canada on May 4th 2018, along with its sister episode "High Sea Diving"
Cultural references
When Spot chases after the fuel rod, the lightsaber activation sound from Star Wars is heard.
The boat that falls on top of Squidward is the RMS Titanic, a British passenger liner that sank in the Atlantic after colliding with an iceberg on April 15, 1912.
This is the Titanic's second appearance. The first is in "Moving Bubble Bass".
While Karen is in sleep mode, the floating shapes on her screen are a reference to the Mystify screensaver included in Windows XP and earlier.
Errors
The opening credits read "animation director" even though there are two animation directors.
In one scene, inside the Chum Bucket, SpongeBob's eyelashes disappear.File:Eror.png
In this scene, the table is sliced, but Plankton appears to be standing on the sliced part, when he should be falling.
When this episode is shown in Canada, the description for the episode is mistakenly shown as the description for "Sanitation Insanity" and "Bunny Hunt"File:Anothererror.png
When SpongeBob changes back, Squidward's nose is behind his mouth.