- SpongeBob SquarePants
- Sandy Cheeks
- Gary the Snail (cameo)
- Fuzzy Acorns (debut)
- Squidward Tentacles (3 cameos)
- French Narrator
- Nat Peterson
- Harold Bill Reginald Scott
- Ivy (gray)
- Frank (red shirt)
- Martha Smith
- Debbie Rechid
- Nazz-Mimi (Orange)
- Frankie Billy
- Miss Rechid
The episode starts with SpongeBob walking over to Sandy's treedome to show her a new karate move. He arrives and sees her with someone else, which makes him think she is being attacked, so SpongeBob walks in to defend her, but gets stopped by the stranger's smelly feet. Sandy introduces SpongeBob to the stranger; Fuzzy Acorns, the greatest karate master ever. Sandy tells him that Fuzzy is here to see her karate skills. She is trying to earn a blacker belt, the highest belt in karate. SpongeBob wishes he had a belt, which Fuzzy overhears and tells SpongeBob that if he wants a belt, he has to earn it. He offers to train SpongeBob so that he can earn a belt. The sponge tries all the tests that Fuzzy gives him, but he fails. Now fed up, Fuzzy tells SpongeBob that he will face against Sandy tomorrow. If SpongeBob passes, he will get a belt, otherwise, he gets nothing.SpongeBob runs home to train himself overnight and then comes back, tired and unrested to spar with Sandy. He does very poorly, falls asleep, and is sad. Fuzzy said if he lasted longer, he would have rewarded SpongeBob with the clear belt, but says that SpongeBob is not even worthy enough to wear the belt that keeps his pants up, so he takes his belt and his pants fall. He also takes Sandy's black belt away for wasting his time with SpongeBob. He leaves and Sandy tries to talk Fuzzy into giving SpongeBob another chance, but Fuzzy never gives two chances and wishes to find food. Suddenly, Sandy gets an idea. She convinces Fuzzy to come to the Krusty Krab to see SpongeBob in action, so he goes (without an air helmet) to see him. There, Squidward tells SpongeBob to stick what he's good at and not try anything new. SpongeBob realizes he's right. Fuzzy watches, and is still not impressed by SpongeBob's agility. He is only amazed when SpongeBob manages to slice Sandy's burger in twelfths with his hand. Fuzzy starts to think SpongeBob is more skilled than he thought, so he tries to attack SpongeBob, but SpongeBob is so busy that he doesn't notice Fuzzy sneaking up on him and dodges Fuzzy. Fuzzy decides he has had enough and tries to finish it, but SpongeBob bends over to get a dropped ketchup bottle, dodging Fuzzy's kick, sending him over to the door of the Krusty Krab. He looks terrible, but Sandy says Fuzzy just needs an air helmet. She gives him one, and he admits that SpongeBob is a worthy karate fighter, and so, he gives SpongeBob a black belt. As well, he gives Sandy his blacker belt for proving that SpongeBob does know karate. Without his belt, Fuzzy's pants fall down, revealing his underwear. The whole crowd cheers with laughter.
|( ‣ ) Associated production music|
|( • ) Original music|
|( ◦ ) SpongeBob music|
‣ Retro Cool 03 095 D - Steve Sechi ["Sandy's in trouble!"]
‣ Unknown Track 46 - Nicolas Carr ["Try again, Sandy."]
‣ Retro Cool 03 095 D - Steve Sechi [SpongeBob fails to attack]
‣ ? ["...the smell of death."]
‣ Unknown Track 46 - Nicolas Carr [blacker belt]
‣ Retro Cool 03 095 D - Steve Sechi ["I'm here to separate the wheat from the chaff."]
‣ Unknown Track 46 - Nicolas Carr [Sandy explains what Fuzzy is trying to say]
‣ Retro Cool 01 105 C - Steve Sechi [first test]
‣ Unknown Track 46 - Nicolas Carr [After the transition scene.]
‣ Retro Cool 03 095 D - Steve Sechi [second test/SpongeBob collides with Sandy's tree.]
‣ Unknown Track 46 - Nicolas Carr ["We shall settle this on the battlefield tomorrow."]
‣ ? [training montage]
‣ Lap Steel - Nicolas Carr [early the next morning...]
‣ Drama Link (d) - Hubert Clifford ["The match!"]
‣ Sponge Monger - Sage Guyton, Jeremy Wakefield [Gary opens the door]
‣ Unknown Track 46 - Nicolas Carr ["Where is the soft one?"]
• Hot Steel and Slide Licks (j) - Jeremy Wakefield [SpongeBob arrives]
‣ Unknown Track 46 - Nicolas Carr ["Let the match begin!"]
‣ Retro Cool 34 095 A - Steve Sechi [Sandy fights SpongeBob]
‣ Lap Steel Lullabye - Nicolas Carr [SpongeBob falls asleep]
‣ Unknown Track 46 - Nicolas Carr ["Too bad your opponent didn't put up a fight."]
‣ Nude Sting - Nicolas Carr [Fuzzy removes SpongeBob's belt]
‣ Hawaiian Cocktail - Richard Myhill [Fuzzy removes Sandy's belt]
‣ Unknown Track 46 - Nicolas Carr ["Silence! No more chances."]
‣ Harp Ding - Nicolas Carr ["That's it!"]
‣ Sailor's Sting 19 - Michael Bolger, Nicolas Carr [at the Krusty Krab]
‣ Vibe Sting - Nicolas Carr ["Stick to what I'm good at?"]
‣ Exotic Sting - Nicolas Carr [SpongeBob making Krabby Patties]
‣ Retro Cool 02 115 E - Steve Sechi [SpongeBob serving patties/SpongeBob continues serving patties/SpongeBob chops Sandy's patty into twelve equal pieces.]
‣ Unknown Track 46 - Nicolas Carr ["What?!"/Fuzzy about to jump at SpongeBob. ]
‣ Retro Cool 03 095 D - Steve Sechi [Fuzzy jumps out at SpongeBob]
‣ Unknown Track 54 - Nicolas Carr ["You little Krabby Patties are so cute."]
‣ Hot Steel and Slide Licks - Jeremy Wakefield ["It's the onions."]
‣ Retro Cool 03 095 D - Steve Sechi ["He's on the offensive."]
‣ Unknown Track 46 - Nicolas Carr ["You brought me to the dance, but the universe is cutting in."]
‣ Vibe Sting - Nicolas Carr ["Huh?"]
‣ Retro Cool 02 115 E - Steve Sechi ["Smell the vibrations!"]
‣ Dramatic Impact 6 - Ivor Slaney ["Fuzzy!"]
‣ Unknown Track 46 - Nicolas Carr [Fuzzy gives SpongeBob his karate belt]
‣ Lap Steel - Nicolas Carr ["You look terrible!"]
‣ ? [Sandy gives Fuzzy an air helmet]
‣ ? ["No more talk, only do!"]
‣ Exotic Sting - Nicolas Carr [Fuzzy gives Sandy the blacker belt]
‣ Nude Sting - Nicolas Carr [Fuzzy's pants fall down]
• Hot Steel and Slide Licks (b) - Jeremy Wakefield [ending]
- This episode is available on the Extreme Kah-Rah-Tay, Complete Eighth Season, and Next 100 Episodes DVDs.
- There is a gold belt seen in Fuzzy Acorns' hand in one scene.
- Fuzzy's belt was originally gold, not black, and was changed for an unknown reason.
- The title card looks similar to that of "Good Neighbors," only that this episode's title card is more of a yellow color, and not blue.
- In Germany, the episode has two title cards.
- It is odd how Mr. Krabs doesn't appear in this episode despite the noise and damage going on inside his restaurant. In other episodes, he usually runs out of his office to see what all the commotion is about.
- The Slug Buddy first appears in "The Great Snail Race."
- This episode premiered five years after "That's No Lady" premiered, and seven years before "Goons on the Moon" will premiere.
- Fuzzy breaks the fourth wall by asking Sandy who she talking too.
- Nat also appears in Sandy's treedome as a piano player.
- This episode also premiered in the same day as "Bubble Troubles," "The Krabby Patty That Ate Bikini Bottom," and "Bubble Buddy Returns."
- SpongeBob's training is a reference to Rocky.
- The episode title is a reference name to Way of the Dragon, starring Bruce Lee.
- SpongeBob was actually complimented by Fuzzy when he said "a Kung Fu charlatan" because Kung Fu is actually stronger than karate.
- When SpongeBob went to fry the fries, the fryer was on the left, but in the next scene, it was on the right.
- In the Russian version, the title card mistakes one of the writers as Mr. Lawrence instead of Derek Iversen.
- Xfinity's description claims that this episode and "Bubble Troubles" first aired April 28, 2008, but it actually aired on November 25, 2011.
- When someone's belt is taken off, their pants fall down (apart from Sandy).