The Chimpanzee beneficiaries of Sandy’s undersea treedome are paying a visit to see what progress she has made with her inventions. But Sandy doesn't think any of her work will satisfy the chimps, and if they don’t like what she’s invented Sandy could lose her funding forcing her to leave Bikini Bottom. SpongeBob and Patrick decide to help their distraught friend by taking over her work and finishing her inventions. At first, Patrick has ideas of things that have already been invented, such as a pencil and a mirror (which ironically is actually a parallel universe). After hours of hard work, SpongeBob and Patrick invent a back scratching, hair-combing, nose-picking ukulele-tuner. When the Chimps arrive, Lord Reginald is the first to test it (though never wanted to, as Patrick forced him). Shockingly, the invention works, but when tuning the ukulele, the machine malfunctions, hits Reginald with the ukulele, slaps him, then starts attacking him with all sorts of weapons. Meanwhile, Sandy hears the screaming of Reginald, and arrives just as the machine spits out Reginald. The Chimps decide to close down the Treedome, but when Dr. Marmalade holds out a banana, Sandy's "nutcracker" peels it for him. It is revealed that this is an invention that Chimps have been searching hundreds of years for. Soon they decide to let Sandy stay for 20 more years, including a higher salary. After the Chimps leave, Patrick decides to test out the machine that injured Reginald, which, of course, malfunctions on him, yet he still yells out "All right!"
( ‣ ) Associated production music
( • ) Original music
( ◦ ) SpongeBob music
‣The Drunken Sailor - ? [title card] ‣Intro Fanfare - Raymond C. Jones [Goofy Goober backscratcher] ‣ ? [Goofy Goober backscratcher] ‣Sweet Perfume - Joe Sherman [SpongeBob scratching his back] •Steel Sting - Jeremy Wakefield ["Oh, sorry."] • ? - Jeremy Wakefield ["To Squidward's house!"/"Go away!"] •Steel Licks - Jeremy Wakefield ["To Sandy's house!"] ‣Lurching Monster - Harry Bluestone, Emil Cadkin [broken inventions] ‣Hawaiian Cocktail - Richard Myhill ["None of my inventions are any good."] ‣Troop Movement - Sam Fonteyn [SpongeBob talking to a peanut] ‣Taps - ? [peanut ground up] ‣Busy Life - Cedric King-Palmer [Sandy's nutcracker] ‣Domestic Fun (b) - Ernest Tomlinson ["I can't even make a simple nutcracker."] ‣Sweet Perfume - Joe Sherman [Patrick scratching his back] ‣O Makalapua B - Kapono Beamer ["Oh, it's no use, SpongeBob."] • ? - Sage Guyton, Jeremy Wakefield [Patrick's "inventions"] ◦So Long, Bikini Bottom - Luke Brookshier, Peter Straus ‣Power Plant - Cecil Milner [SpongeBob and Patrick working on an invention] ‣ ? [Sandy's bosses arrive] ‣Proud Fanfare - David Farnon [SpongeBob and Patrick's invention revealed] •Vibe Sting - Nicolas Carr ["This is where our research money went?"] • ? - Sage Guyton, Jeremy Wakefield ["Step right up!"] ‣ ? [machine malfunctions] ‣ ? [bus pulls up] ‣Dramatic Impact 5 - Ivor Slaney ["What in tarnation?"] ‣Dramatic Cue (b) - Ronald Hanmer [Sandy gasps] • ? - Jeremy Wakefield ["Lord Reginald, are you all right?"] ‣South Pacific Island II - Victor Cavini ["I'm sorry, Sandy."] ‣Busy Life - Cedric King-Palmer [nutcracker peels bananas] ‣Hall of Fame - Harry Bluestone ["It's the banana peeler we've been searching 117 years for!"] • ? - Sage Guyton, Jeremy Wakefield [ending]
When Sandy sings her "birds that fly upon the ground" line, a manta ray swims by, releasing a bird call. This is strange, because most birds are depicted as scallops.
Patrick often insultingly refers to SpongeBob as an "unpaid intern" in this episode. Strangely, he is perfectly fine with actually being an unpaid intern (and referred to as so) in Bummer Vacation.
When SpongeBob talked to Patrick about the his mouth moved before the reflection.
In Sandy's song, you can hear string squeaks camouflaged in the background of her music. Although in "Texas ", you can hear that the guitar strumming sounds distorted, so the string squeaks can't be heard.
Running Gag: Patrick wants people to call him "Mr. Dr. Prof. Patrick".
In Greek, this episode is called Έρχονται οι πίθηκοι which means The ape's are coming.
During the title card, the music is the same as in the episode title card, Selling Out.
This episode title is a parody of Chips Ahoy!, a popular cookie snack.
Christopher Ryan, Rik Mayall and Nigel Planer are best known for their roles as Mike, Rick and Neil on The Young Ones (TV series).
The helmet Sandy invented is similar in style and design to the helmet worn by Noodle, fictional guitarist for Gorillaz, during Phase 1.
Lord Reginald appears to be a parody and resemblance of Cranky Kong from the Donkey Kong Country series.
The chimps arrive in a yellow submarine. This is a possible reference to the Beatles song Yellow Submarine.
The Hasbro toy Barrel of Monkeys appear on the title card.
An element of this episode, Sandy's funding potentially being cut, bears similarities to the Mystery Science Theatre 3000 episode "Laserblast", in which Dr. Clayton Forrester's funding is cut, forcing him to disconnect the Satellite of Love and leaving Mike Nelson and the Bots to what Dr. Forrester thinks will be an eventual demise.
When SpongeBob looks in the mirror, he is wearing his water helmet, but in the mirror it is gone.
If you look at Sandy playing her guitar, you see she's playing with her left hand. However, in other episodes like Band Geeks, she plays with her right.
When the machine spits out Lord Reginald, he is bald from the accident. But when Professor Percy says to invent the Poop Thrower, Lord Reginald 's hair is all grown back.
When SpongeBob and Patrick say "It's here!", captions say "It's Eric!"
Sandy said in the beginning of the episode that the chimps were coming that afternoon. When SpongeBob and Patrick want to help, they work all night, and the chimps come the next day.