The series chronicles the exploits and adventures of the title character and his various friends in the fictional underwater city of Bikini Bottom.

The documentary film titled Square Roots: The Story of SpongeBob SquarePants premiered on July 17, 2009, and marked the anniversary.

The episode "Dear Vikings" was nominated at the 61st Primetime Emmy Awards for Outstanding Special Class – Short-Format Animated Programs.

Furthermore, Alan Smart was also nominated at the 36th Annie Awards for Direction in an Animated Television Production or Short-form for "Penny Foolish".

[3][4][5][6] Cyma Zarghami, president of Nickelodeon, said "One of the great things about animation is that you can play it over and over again, and kids will still watch it [...] With live action they won't.

It was written by Luke Brookshier, Nate Cash, and Eric Shaw, while Alan Smart served as animation director.

[23][24] Animation directors credited with episodes in the sixth season included Andrew Overtoom, Alan Smart, and Tom Yasumi.

Episodes were written by a team of writers, which consisted of Casey Alexander, Steven Banks, Luke Brookshier, Nate Cash, Zeus Cervas, Sean Charmatz, Derek Iversen, Tom King, Dani Michaeli, Richard Pursel, Chris Reccardi, Aaron Springer, Eric Shaw, and Paul Tibbitt.

[a][25][26] The sixth season featured Tom Kenny as the voice of the title character SpongeBob SquarePants and his pet snail Gary.

Puff, SpongeBob's boating school teacher;[33] and Lori Alan as Pearl, a teenage whale who is Mr. Krabs' daughter.

[34][35] In addition to the regular cast members, episodes feature guest voices from many ranges of professions, including actors, athletes, authors, musicians, and artists.

For instance, in the episode "House Fancy", television personality Alton Brown guest starred as the character of Nicholas Whithers, the host and judge of a show of the same name.

[38][39][40] According to Sarah Noonan, vice president of talent and casting for Nickelodeon, Depp accepted the role because he and his kids were fans of the show.

Borgnine later reappeared in the episodes "Ditchin'" and "Shuffleboarding", voicing his recurring role, with Tim Conway as Barnacle Boy.

[36] Furthermore, Dee Snider, the frontman of the heavy metal band Twisted Sister, guest starred in "Shell Shocked" as Angry Jack.

"[37] In the entry "The Clash of Triton", English singer Victoria Beckham guest starred in the episode as the wife of King Neptune, Queen Amphitrite.

[56][57][58] Other guests in the episode included Seinfeld actor John O'Hurley as King Neptune and Skid Row heavy metal vocalist Sebastian Bach as the voice of Triton.

[59][60][61] Moreover, in the television film SpongeBob's Truth or Square, various celebrities guest appeared, including Rosario Dawson, Craig Ferguson, Will Ferrell, Tina Fey, LeBron James, Triumph the Insult Comic Dog, and Robin Williams as guest actors appearing as themselves in the live action sequences, while Ricky Gervais provided vocal cameo as the narrator.

[78] Alan Smart was also nominated at the 36th Annie Awards for Direction in an Animated Television Production or Short-form for "Penny Foolish".

[79] "Suction Cup Symphony" received a nomination at the 2009 Golden Reel Awards for Best Sound Editing: Television Animation.

[90][91] Sarah Noonan has been nominated for two Artios Awards of the Casting Society of America, out of which she won for Television Animation.

[92][93] "Dear Vikings" was nominated at the 61st Primetime Emmy Awards for Outstanding Special Class – Short-Format Animated Programs; however, it had no winner as the nominees neither received the necessary 50 percent support.

[96] He said that the episodes, including "Choir Boys", "Pet or Pests", "Overbooked", "Shell Shocked", "Komputer Overload", "Chum Bucket Supreme", and "Single Cell Anniversary" are "solid entries" and "all deliver steady laughs," but has doubts that "they're on a par with series' best entries like 'The Splinter', 'Slide Whistle Stooges', 'Boating Buddies', and 'The Slumber Party'.

After an unintentional explosion rearranges the remains of his house in an abstract style, the host declares Squidward the winner.

A giant tidal wave hits Bikini Bottom and takes SpongeBob, Patrick, and Squidward to a distant island.

"Porous Pockets": SpongeBob becomes rich after finding a pearl, and abandons Patrick to hang out with his new wealthy "friends", as his personality is consumed by greed.

"Krusty Krushers": Mr. Krabs enters Patrick and SpongeBob in a wrestling match to win money, but the two can do anything but fight, and keep getting beaten.

"Shuffleboarding": Mermaid Man and Barnacle Boy are injured, so SpongeBob and Patrick take their places in a shuffle boarding match.

"Pet or Pests": SpongeBob is left with a litter of baby worms after Gary scares the mother away, so he tries to find them a new home.

The first 24 segment episodes of the sixth season were released on DVD by Paramount Home Entertainment in the United States and Canada on December 8, 2009.