When it's a revival of a popular movie series with plenty of action and awesome moments, it goes without saying.
Season One
- Inadvisable as it is for Real Life, having Aisha giving Yasmine a super painful front-wedgie during the beach party is very satisfying to watch, considering all of Yasmine's cyberbullying directed at Aisha and Sam. Kyler and his group's beatings at the hands of Johnny and Miguel count as well.
- Johnny finding a new purpose in his life and training Miguel, coupled with the latter finally given the opportunity to defend himself.
- Johnny’s Cobra Kai taking off with a large batch of students after Miguel’s beatdown of Kyler and his gang goes viral. After years and years of going in a downward spiral, it’s the biggest success he had in his life for a long time.
Season Two
- Johnny getting physical with Carmen's boyfriend (Graham) after he overhears his plan to use her as a stand-in. For added bonus, he ends up winning Carmen in the process!
- Say what you want about him, but Demetri finally growing out of his wimpy, neurotic self and using his karate skills to good use by pinning his former friend-turned-rival/bully Hawk down in the process after everything the latter has done to him is nothing short of satisfying.
- The mass exodus from a handful of Cobra Kais to Miyagi-Do is a big Laser-Guided Karma on the dojo, especially after Hawk brutally trashes Miyagi-Do and goes as far as to steal Miyagi-Do's Medal of Honor.
- Daniel's beat-down against Trey and Cruz is especially satisfying when in the previous season, Trey and Cruz were ultimately Karma Houdinis while Daniel spent the entirety of the first season not fighting at all.
Season Three
- Yes, Kreese is an irredeemable psychopath, but it doesn't get any more satisfying when he threatens Tory's sexually predatory landlord with his cigar chopper, leaving the bastard at his mercy.
- Robby nearly beating the hell out of Shawn (after taking out his goons in the process) by using Kreese's method of "striking first". It doesn't get any more satisfying with Shawn actually showing a degree of respect to him after finding out that neither one of them snitched.
- Daniel getting a dose of Karmic Jackpot from the very same girl that he saved from The Karate Kid Part II, securing his victory in keeping his business from Tom Cole.
- Amanda not being intimidated at all by Kreese and actually slapping him, even though it backfires on her later. Even its split-second glimpse in the Season 3 trailer gets one of the biggest responses in any reaction video.
- And Amanda herself is also on the receiving end, as after two seasons of her acting like Daniel's issues with Cobra Kai are completely ridiculous, seeing her finally learn firsthand just how bad Kreese really is and start to take a similar attitude to Daniel has a certain schadenfreude.
- Hawk gets his turn beating the hell out of his bullies, when he takes out years of resentment and bullying on a well-deserved target, Brucks (giving him a full-blown No-Holds-Barred Beatdown). The icing on the cake is Kyler cowering away from his former victim right after and realizing that his time as the top dog is over and never coming back.
- The LaRusso house fight is full of these.
- Hawk finally realizing how far he's fallen and defecting from Cobra Kai mid-brawl to save Demetri from his attackers and apologize for being such a jerk. The two of them working together to defeat the rest of their opponents being the icing on the cake.
- Miguel (after encouragement from Johnny) getting a Heroic Second Wind, shedding any weakness he had from his near-career ending injury and beating the hell out of Kyler once again. To make it all the more satisfying, he even "thanks" him for the motivation.
- When Tory corners her and shatters a portrait of Mr. Miyagi, Sam finally overcomes her fear and engages Tory in battle. She disarms Tory and declares that she is no longer afraid of her. With how smug and sadistic Tory had acted in their previous encounters, it's especially satisfying when she is held at staff-point by Sam and eventually forced to surrender, finally getting a taste of just who she picked a fight with.
- Johnny overpowering Kreese in the S3 finale and pummeling the crap out of Kreese's face. Same goes for when Daniel overpowers and subdues Kreese right after this and actually causes Kreese to look utterly terrified as he remembers Miyagi holding him in this same position 34 years ago to the day.
- While it's sad to see Kreese shedding whatever good he has left of him, it's nothing short of satisfying to see him literally kick his asshole of a commanding officer down the snake pit.
- Daniel and Johnny finally working together at the end of Season 3, after three seasons' worth of bickering, poor communication, and external factors driving them apart.
Season Four
- Kenny and Daniel finally standing up to Anthony. Kenny by promising Anthony will pay for his bullying and delivering a Curb-Stomp Battle that if Robby wasn't there to intervene, would've sent him to the hospital. Daniel by breaking Anthony's tablet and sternly lecturing him after his son tries once too many with him.
- On a side note, Kenny beating up Anthony's friends and getting them suspended from school since they're the one who pushed Anthony to bully Kenny.
- Also, the principal of the middle school actually punishing the correct individual for once.
- Johnny being able to recruit Devon as his female representative for Eagle Fang in the All-Valley, and boy does she make quite the impression (even though she's only trained for 6 weeks).
- Daniel finally admitting Johnny's teachings aren't all bad and he did a truly great thing by how he changed the students' lives. Additionally, Johnny coming to understand that Miyagi-Do isn't about being "soft" or "weak."
- Eli winning the All Valley Tournament after realizing he can be badass without being a jerk — one of the core Eagle Fang values as laid down by Johnny — and that he doesn't need the Hawk persona to be confident. Even better, one of his opponents he delivers a Curb-Stomp Battle to is his former bully, Kyler.
- Despite being otherwise a creepy and dark turn of events, Kreese being arrested and betrayed by Silver is this after being a Karma Houdini for a long time. Specially because Silver's betrayal happened because Kreese's abuse of Silver during the whole season.
Season Five
- Robby gladly going along with Johnny in their trip to Mexico, even if it meant finding and rescuing his Arch-Enemy, Miguel. It's the one scene that really solidifies Robby finally accepting his dad in his life after years and years of resenting him.
- Miguel and Robby's rematch in Season 5 is meant to be an in-universe example of this, as per Johnny's insistence they let their actions speak for themselves in order to hash out their animosity. This actually works; seeing both nearly recreate the climax of their fight from Season 2, only for cooler heads to prevail and actually get them to speak to each other, finally leads them to bury the hatchet. Compounded further by Johnny accidentally revealing that he's expecting a baby with Carmen, causing Miguel and Robby to eagerly embrace him over the good news upon realizing that they would essentially be family.
- The Miyagi-Fangs coming together once more, with Daniel, Johnny, and Chozen as their senseis, and even Amanda (who was always constantly at odds with her husband going back into karate) and Anthony (who was a Lazy Bum for the vast majority of the show) joining in their fight against Cobra Kai.
- And who else came back to join in on the fight? Robby, finally re-accepting Johnny and Daniel back into his life and ready to fight for them.
- Johnny and Daniel being able to trick Kreese into revealing Silver's plan with Daniel promising he'll bail him out with a lawyer. And how does Daniel cap it off? By faking his promise using Kreese's own philosophy against him word-for-word.
NO MERCY MOTHER FUCKER!
- Anthony coming up with the idea of having his fellow students work together to protect their eggs. It's the first really productive thing he's done throughout the whole show. Even better, Anthony is the one who exposes Silver for his dishonorable actions at the tournament to all the Cobra Kais, further evolving from the useless joke he was in the first few seasons to a valued member of the Miyagi-Fangs.
- The Miyagi-Fangs making it to the Sekai Taikai is a big one in-universe. It's about time the protagonists of the Miyagiverse take their skills to the next level beyond the All-Valley, and what better way to do it than to show off their skills for the entire world to see?
- Sam is finally forced to confront her insensitivity toward Tory when she sees the latter's depressing home life up close. This solidifies both girls finally making peace with each other and ending their rivalry.
- Demetri getting his turn to give Kyler a beatdown, which he even acknowledges as feeling very cathartic. Even more satisfying is that the entire nerd trio that Kyler bullied back in Season 1 now had their chance to give their Bully a well-deserved beating.
- After being a cheating Jerkass and Small Name, Big Ego all season, Kenny finally getting a reality check when he tries to take on Miguel and receives a Curb-Stomp Battle is very satisfying to watch.
- Silver finally being taken down by Daniel (who uses Silver's own techniques against him, including for blocking), losing the loyalty of his students, and being arrested. And that's not even getting into how he pretty much burnt his bridges with everyone he ever knew. Him being defeated by the Crane Kick, which he once mockingly referred to as "that Crane Crap", is also the icing on the cake.
- Really, just the entirety of Mitch's brief tenure rejoining Cobra Kai being nothing more than Butt-Monkey status. First, Kyler calls him "Penis Breath" after Mitch chastises Bert for calling him that, which contributed to his betrayal. Then when the Final Battle happens, Chris is able to kick Mitch's ass once again, leaving him writhing helplessly on the floor while the Cobra Kais try to close in on Anthony. Following that, Silver is exposed as a fraud and a cheater — leaving Mitch, like the rest of the Cobra Kais, feeling betrayed by their sensei's dishonesty and lack of real faith in them. What comes next is Daniel, Mitch's old sensei, delivering a humiliating Curb-Stomp Battle to Silver, Mitch's new sensei, solidifying to the younger generation of karatekas who was the better teacher — this becoming the ultimate final nail in the coffin for Mitch, like the rest of the Cobra Kais, defecting from the dojo. So much for the snacks, swag, smoothies, chicks, and fake people that he believes don't call him "Penis Breath".
