S9 E1 • A Friendly Game

SpongeBob builds his own mini golf course in his house.

S9 E2 • Sentimental Sponge

SpongeBob struggles to part with some items because of the memories they evoke.

S9 E3 • Squidward's School For Grown Ups

Patrick grows a giant beard and immediatly become best friends with Squidward, ruining his friendship with SpongeBob.

S9 E4 • Oral Report

SpongeBob is nervous about giving an oral report for boating school. When he does he rides Mrs. Puff's boat and crashes it in town.

S9 E5 • The Hot Shot

A famous race car driver's son

S9 E6 • The Other Patty

Mr. Krabs and Plankton find a common enemy in the new Flabby Patty restaurant.

S9 E7 • Frozen Face Off

In this episode, SpongeBob and his friends travel through a winter wonderland.

S9 E8 • Accidents Will Happen

Squidward threatens to take legal action against Mr. Krabs when he gets hurt on the job.

S9 E9 • Drive Thru

Mr. Krabs turns a hole in the wall of his restaurant into a drive-thru window.

S9 E10 • Sweet and Sour Squid

Plankton tries to befriend Squidward so he can get the krabby patty formula.

S9 E11 • The Googly Artiste

The citizens of Bikini Bottom clamor for Patrick's artwork after an art critic praises him.

S9 E12 • Barnacle Face

Mr. Krabs ask SpongeBob to help Pearl get rid of a Barnacle on her face.

S9 E13 • Pet Sitter Pat

SpongeBob asks Patrick to watch Gary while he is away.

S9 E14 • Mermaid Man Begins

SpongeBob and Patrick learn the secret origins of Mermaid Man and Barnacle Boy.

S9 E15 • Plankton's Good Eye

Plankton grows a second eye and becomes nice.

S9 E16 • House Sittin' for Sandy

SpongeBob agrees to be Sandy's house sitter, but things go wrong when Patrick arives.

S9 E17 • Smoothe Jazz at Bikini Bottom

SpongeBob and Squidward try to sneak backstage at a concert after losing their passes.

S9 E18 • Ghoul Fools

SpongeBob and Patrick find a houseboat haunted by a crew of ghost pirates and get caught in the feud between them and the Flying Dutchman.

S9 E19 • Walking the Plankton

Mr. Krabs and SpongeBob win a free cruise thanks to Plankton.

S9 E20 • Patrick's Staycation

SpongeBob comes up with a solution when Patrick can not afford a vacation.

S9 E21 • Mr. Krabs Takes a Vacation

Mr. Krabs takes Pearl and SpongeBob on a vacation to the Ocean Mint.

S9 E22 • Mooncation

Sandy takes SpongeBob to the moon for a vacation.

S9 E23 • A SquarePants Family Vacation

Patrick goes on vacation with SpongeBob's family to the Great Barrier Reef.

S9 E24 • The Krabby Patty That Ate Bikini Bottom

A Krabby Patty grows much too large after Mr. Krabs adds Sandy's scientific ingredients to it.

S9 E25 • Bubble Buddy Returns

SpongeBob attempts to keep Bubble Buddy's son out of danger.

S9 E26 • Bubble Troubles

SpongeBob and Patrick search for oxygen for Sandy after they ruin her supply.

S9 E27 • Way of the Sponge

SpongeBob works toward getting a karate belt.

S9 E28 • Planet of the Jellyfish

SpongeBob and Sandy must defeat an evil Jellien overlord who has replaced everyone with clones.

S9 E29 • Are You Happy Now?

S9 E30 • Restraining SpongeBob

Squidward issues a restraining order against SpongeBob.

S9 E31 • Glove World R.I.P.

SpongeBob and Patrick spend a day at Glove World before it closes.

S9 E32 • Home Sweet Rubble

SpongeBob recruits his friends to help him remodel his pineapple.

S9 E33 • Fiasco!

Plankton mistakenly believes that a piece of art is a stolen krabby patty.

S9 E34 • Free Samples

When Plankton drives away Krusty Krab customers, Mr. Krabs is forced to give out free food to win back his customers.

S9 E35 • inSPONGEiac

SpongeBob asks Patrick to help him fall asleep.

S9 E36 • Treats!

SpongeBob brings home a box of new snail treats for Gary.

S9 E37 • Squiditis

Squidward fakes an illness to go home sick.

S9 E38 • For Here or to Go

When Plankton wins a free krabby patty, Mr. Krabs tries to keep him from collecting his prize.

S9 E39 • It's a SpongeBob Christmas!

It's Christmas and SpongeBob is the happiest person in Bikini Bottom, while Squidward remains grumpy and Patrick attempts to capture Santa Claus. Plankton, however, is miserable, having committed so many naughty acts, he is on the naughty list and won't receive his Christmas wish - the Krabby Patty formula. However, he reveals to Karen his latest discovery: jerktonium, the substance that will turn anyone into a jerk, and cooks into fruitcake he intends to spread around Bikini Bottom. First, he gives the fruitcake to SpongeBob to test it, but he is resistant to the jerktonium, and upset that his plan failed, gives his fruitcake dispenser to SpongeBob, who promptly distributes the fruitcake to all of Bikini Bottom, turning all the residents into jerks, like Plankton intended. Plankton realizes that SpongeBob is so full of Christmas spirit, he is immune to jerktonium, so he sends out a Robo-SpongeBob to commit naughty deeds to defame SpongeBob. SpongeBob begins to suspect something is up when everyone acts like jerks, and goes to Sandy, who realizes what is happening, and the antidote happens to be song. SpongeBob begins singing and cures everyone from their jerktonium trance, bringing back their Christmas spirit. However, it is too late as when Santa Claus arrives, he says everyone is on the naughty list, sans Plankton, who gets the Krabby Patty formula. Santa also says that SpongeBob is the worst of all when the Robo-SpongeBob comes to kill Santa and destroy Christmas. SpongeBob fights and destroys Robo-SpongeBob with the fruitcake dispenser. Meanwhile, one of Santa's elves finds the wind-up key that proves Plankton was involved with the naughtiness, and he gets piled under coal. Santa leaves Bikini Bottom, only for Patrick to put him in a jellyfish net when Santa is flying by the moon.

S9 E40 • Karen 2.0

Plankton replaces his computer wife with a new version.

S9 E41 • Demolition Doofus

Mrs. Puff enters SpongeBob into the Demolition Derby, where his bad driving makes him a star.

S9 E42 • Face Freeze!

SpongeBob and Patrick get face freezing after doing many faces.

S9 E25 • Yeti Krabs

Squidward is not productive at work, so Mr. Krabs tells a tale about a yeti crab that eats lazy employees. When a real one arrives, SpongeBob takes it seriously and starts working extra hard.