In Bomberman Hero, Laser Rain is mentioned as this after an area with a lot of them. "Tower of Laser Spikes" and "Helicopter Brain TV" also get spoken, and they think they would make good album titles.
In Majora's Mask, Spiders and Seagulls, which they develop into a Revolving Door Band by virtue of the members eating each other and then the audience.
In Twilight Princess, they all agree that "Killed the ghost of an eagle" would make a great song title.
Thorn's opinion of the game is occasionally brought up as the LP goes on. He defends it heartily at the beginning, just about hates it when the game is finished.
Dragon Road has no dragons, just flying knives. The next time flying knives are encountered, Travis insists that they are dragons.
Thorn suggests early in the LP that he and Travis should write lyrics for "Redial". When the song is requested by the Something Awful thread for a montage video near the end of the LP, they do exactly that.
During the Lanayru Sand Sea, Thorn and Travis start talking about the to-be-Let's Played Ni No Kuni, namely how often Swaine dies in battle. Later when Thorn kills the Moldarach miniboss, Travis yells out Swaine's death cry.
During the Anju and Kafei sidequest, the guys joke about the Postman wondering if he can deliver mail to himself. Come the night of the final day, they see him panicking on the floor and think he's having a crisis because he still hasn't figured it out.
During Skyward Sword, Thorn talks about how he thinks the game is tedious and annoying in hindsight, after a first playthrough where he enjoyed almost all of the game, but he still thinks it's a good game.
But not so mercifully applied to Bomberman Hero and Bomberman Jetters. Let's Playing both games made Thorn go from liking them to hating them. He'd already assumed the same would happen with Bomberman Generation before he even started playing.
Brown Note: Just the sound of Thorn's kazoo or Travis' tuba mouthpiece is enough to send the whole trio into hysterics. When Travis brings the latter out at the end of Day 5 in Pikmin 2:
Calling Your Attacks: Thorn and Yoshi note that the Grand Bomber can not do this with any accuracy or cohesion.
Canada, Eh?: Or as Travis calls it, "Cananada Land", because it irritates his Canadian friends.
Canon Discontinuity: Every LP from before Bomberman Hero has been removed from TheStrawhatNO's YouTube channel or set to private/unlisted. Solidified when Thorn updated all of the LP playlists, and Bomberman Hero is listed as LP #1.
"[X], everybody!": Whenever they realize something particularly screwed up has happened, namely in Twilight Princess. Can also be "TheStrawhatNO, everybody!" when they've been saying even more ridiculous things than usual for the past few minutes.
In Sleeping Dogs, the guys turn "COP!" into one for everyone including themselves, "Damnit Wei!" into one for Raymond, and "By the way, Wei" into one for King.
The Chew Toy: Drippy is constantly joked about as being run over, shot, and otherwise mangled as catharsis for hating his character.
Travis gets special mention. The main reason Thorn invited him to co-commentate Bomberman Hero is because of how quickly he comes up with ridiculous things to say.
"Did you forget how abstract I am?"
Travis points out in Shadow of the Colossus how there is always at least one character in every Let's Play that they make insane or creepy. These include Agro, Pibot, Fi, the President, and every other NPC in Twilight Princess.
Cluster F-Bomb: The captions in the Bomberman Generation collection video when it gets to Eagle Bomber.
Most of the love letter sidequest in Skyward Sword is spent laughing at Cawlin's misfortune.
Thorn (As Dumple): "I'm gonna sit here and laugh at you! Ha! Ha-ha!"
Travis (Also as Dumple): "So tell me how you feel, 'cause I don't care!"
The entire Sleeping DogsLet's Play is this. Travis causes more than a ridiculous amount of pain, murder and destruction to the citizens of Hong Kong (innocent and otherwise), and the trio spend the whole time cracking up over it.
Yoshi: Yeah, see? He snatches up your Pikmin, and then he buries them into the ground if you don't get him quick enough.
Thorn: He doesn't kill them he just throws them into the ground.
BigTUnit: And then you murder him; that seems equivalent.
Yoshi: Hey! He grabbed my flowers.
BigTUnit: How dare he plant in a place where I can easily pick.
Yoshi: That would take me like... maybe a half second. That's annoying.
BigTUnit: So for that you die.
Dissonant Serenity: Bomberman's idle animation in Generation is him dancing in place. It makes for some very blatant dissonance after almost every boss fight, and the guys lampshade the hell out of it.
The ending of Bomberman Hero not only has such low graphical quality that the other Bomber characters are just jumping statues, but there are so many of them that the framerate drops.
While Thorn is fighting The Imprisoned the second time, he fails to jump on its back and instead hurts himself. He switches to Groose to attempt to slow the monster down, but the bomb flies right through The Imprisoned's hair.
Travis: "The old woman at the top just facepalms."
Foreshadowing: On Day 4 of Pikmin 2, Travis jokes "Happy early St. Patrick's Day. I'm already drunk". Then on Day 7, Yoshi says "Travis, you're drunk, go home!" Then comes Day 9, where Thorn and Travis are drinking for the first 50-75% of the video.
Travis: "No wonder they went into debt! They have no sense of value!"
Fridge Horror: In-Universe, Thorn talks about how the Cremia hug scene in Majora's Mask suggests that Link's life has left him emotionally stunted.
Fridge Logic: In-Universe, they point out odd placements for treasure in Pikmin 2, such as measuring cups and false teeth in a shower room. In addition to the irony of more food treasures existing in the Submerged Castle than in the Glutton's Kitchen. Travis also questions why he's still bringing logic into the game, right as a kamikaze spider appears.
Yoshi: "Why?! Look at the spider bomb! Look at the spider bomb!"
Randall, a Santa statue in a steakhouse Travis was in that ended up being seen in all of his pictures.
Happens in Sleeping Dogs with vehicles, due to the cutscenes playing in-engine. Two happen within 40 minutes of each other in Part 11, one of a large truck hitting another car, and one of a car getting stuck driving in circles.
Grand Unifying Guesses: Travis starts a round of this, with everyone connecting Pibot with the Temple of Time and Pikmin.
God-Mode Sue: Parodied in-universe with the Purple Pikmin. They're already game breakers in Pikmin 2, but the guys also say they can fire black holes, control space and time, and find seven cures for cancer. And cause five more.
One guard in Part 2 of Agent Under Fire inexplicably starts running in circles.
Thorn uploaded several short Demons Souls and Dark Souls II videos of bugs he came across, among them a Storm Demon flying in circles, a rock spinning through the floor geometry, a corpse bobbing its head like Michael Jackson, Dark Orb causing giant enemies to levitate, and the entire Dragon Aerie glitching out in a black and white texture mess.
Travis notes that he tends to find bugs and glitches in his LPs:
In Part 11 of Sleeping Dogs, Travis opens the video by walking past a man neck-deep in a set of stairs.
In Majora's Mask, Thorn messes up the Anju and Kafei sidequest twice with Sakon's hideout, and each time he responds by glitching through the door of the hideout, resetting the scene inside and allowing him to do it correctly.
Hello, Insert Name Here: Several games with this option have been LPed, and often the viewers get to give suggestions for the names, such as every Link in The Legend of Zelda games (Hey Hey, Dumple, PizzaJoe).
Heroes Love Dogs: Zig-zagged with Thorn. Considers himself a dog lover and is as subject to Cuteness Proximity as anyone else during the LPs, but he is infamous for losing his temper to the dogs outside his house, at one point going on a rant in the middle of Skyward Sword Part 23 about how much he hates them.
Travis's interpretation of the Antenna Beetle in Pikmin 2, which possesses your Pikmin.
The group's interpretation of King in Sleeping Dogs, thus he constantly bothers Wei with stupid questions.
Instant Awesome, Just Add Dragons: They talk about how awesome Charaboms would be if all of them were part dragon. Indeed, the Charabom they all like the most is Pommy Dragon.
Irony: Thorn mentions that Myrtle and Esther's voice actress in Ni no Kuni, a game where the protagonist is named Oliver, appeared in a musical called Oliver!.
Leave the Camera Running: The group continue recording their commentary long after the gameplay video ends. This is often where their discussion becomes the most chaotic and surreal, due to the lack of anything visual needing explained.
Let's Get Dangerous: In Skyward Sword's Skyloft Silent Realm, Thorn gets caught by the guardians and rushes to get a tear before they catch him. He goes for the hardest tear he could get. He makes it.
Let's Play: Their LPing style is a mixture of humourous, snarky post-commentary with thorough gameplay and sometimes serious discussion.
Let's See You Do Better: During Pikmin 2, Yoshi keeps saying that he's waiting for Travis to do a Let's Play so he can mock him over everything, just as Travis has done for him. When Travis begins heading his own LPs, they become some of Yoshi's favourites.
Mistaken for Racist: Invoked when Travis and Thorn talk to Gondo about repairing Scrapper, and everything they say as Dumple is a desperate attempt to not sound racist while saying something pretty clearly racist.
Non-music example. Uncut versions of Twilight Princess videos sometimes include subtitles, which read out what Thorn thinks Midna's gibberish could be saying. Travis also started doing this during the commentary.
Zig-zagged with "Rick", who is originally used as a Scapegoat Creator, the one guy in every development team who comes up with the bad ideas and happens to be the exact same Rick every time. In some cases however it's a name the guys use to denote a random Jerk Ass.
Averted when several character names reappear in later LPs as Hello, Insert Name Here characters, such as Dumple and Pibot. PizzaJoe was used for three Zelda LPs, first in a bonus video for Skyward Sword, then twice in full Majora's Mask and Wind Waker LPs after to make up for the jokes they could have made.
Sleeping Dogs: regardless of all the dates and girlfriends Wei has, Raymond is his true love.
Padding: invoked Thorn's biggest gripe with Skyward Sword, saying the final third of the game suffers from "Armageddon Syndrome": disruptive things happen to halt Link's quest that have no reason to be happening (the Tadtones, Eldin Volcano erupts).
After exploiting a glitch in Twilight Princess where Link can "kill" the Postman, he reappears at the end of the video, and from then on he's mentioned as warping space and time and flying in any future chasms that Link crosses.
Epona in Majora's Mask is joked as being a chaos god for her apparent invincibility and teleportation powers. Thorn finds extra humour in that she's named after a Gallo-Roman god.
Travis (as a very playful Midna to Wolf Link): "Would you like a tickle on the booty-boot?" He later says he never said "booty-boot" before.
Redundant says this of Epee Em's "Hey, Hitler-head!" when talking about Ashei's hair, which looks like a toothbrush mustache on her forehead.
Travis when Fyer repairs the Sky Cannon: "Words I never thought I'd say: 'clown repair montage'".
Thorn describes Constructor-X as "awesome but embarrassing". Redundant notes that more things should be described as such.
Ni no Kuni:
Thorn: "Certain ingredients can only be bought from Hootenanny. And I can't believe I just said that."
Then again when he mentions the "Cawtermaster".
When discussing the multiple tiers of Familiar food:
Travis while laughing: "That's such an odd statement. 'Sweetie Pie, the next generation of pie!'"
Recursive Reality: In the uncut version of Part 4 of Twilight Princess, the trio joke about this happening with Malo and Coro.
For Malo, if you look into his hair, you see a black hole that reveals Hey Hey looking into Malo's head.
For Coro, if he reaches into his afro, he pulls out his bird Trill. Then Trill reaches into his afro and pulls out Coro.
Travis: "Until they both go, "Wait a minute!", and they both reach into their afros at the same time, and then they explode."
Retsupurae: The channel's primary videos for the first year or so before Thorn and Yoshi returned to Let's Plays. As of 2012, they no longer do Retsupuraes, and all of them have been set to Unlisted or deleted. The links for all of the RPs can be found on their site.
Everything in every game is frustrated. Even the player is frustrated.
"I look ridiculous!"
Travis and Thorn reference "I'm Gonna Be (500 Miles)" by The Proclaimers almost every LP.
When something cool happens, Travis sometimes shouts out "America!"
Every bad design choice (starting with Bomberman Hero, then later every game Thorn and Yoshi play) was by a nerdy developer on a pizza high named Rick, and every trolling moment made in a Nintendo game is direct result of Shigeru Miyamoto.
Thorn plays his kazoo or his cheap toy Casio keyboard whenever the chance arises.
Whenever Thorn or Travis suggest a good gameplay mechanic, Yoshi says, "Whoa whoa, let's save that for [next game in the series]."
Computer AI sometimes bugs out and causes enemies and NPCs to spin around in circles.
The ridiculous voice acting. Max, Birdy, and Gangu are favorite mockery targets.
Shout's ridiculously useless or repetitive advice.
The Jetters, rather than being an intergalactic police force who wish to bring peace, are a bunch of jerks who are doing this mission, not to save Planet Bomber, but to punish the Hige Hige Bandits for having fun.
The effect having a hero named "Dumple" would have on everyone, including Dumple himself.
When Thorn is joined by Yoshi, Dumple is the LP's resident insane character. When he is joined by Travis, Fi becomes this.
Whenever Thorn finds a Monster Horn in a treasure chest, he sarcastically says "'Cause you know..." to emphasize the pointlessness of stashing one of them. Twice they appeared with so much frequency that he exasperatedly yelled out "Why?!"
Thorn and Travis are both music buffs and have sang/namechecked Nick Cave, The Proclaimers, Motörhead, and a lot more during various LPs. They reference The Proclaimers' "500 Miles" so often it's turned into a running gag.
Travis and Thorn's assessment of the signature TheStrawhatNO sense of humor boils down to this trope, after the two alternate (almost immediately) from DaVinci helicopter jokes to cocaine jokes in Shadow of the Colossus.
Thorn: "We're like the dynamic range of an orchestra: we go all the way up and all the way down."
Travis: "We can somehow fit into one sentence 'Pavlov's conditioning, motherfucker', and it somehow works."
From the first screenshot update for Ni no Kuni:
Thorn: "Since nobody said if they actually give a shit if I transcribe the dialogue, I have forgone the minutia."
Soundtrack Dissonance: Travis likes to invoke this while driving vehicles in Sleeping Dogs by switching to the classical music radio station, especially if something ridiculous is happening. It makes even dorky scooters and chicken trucks seem awesome. Thorn does the same thing in a short video of him hitting-and-running thugs during a drug bust to "Peer Gynt Suite".
The Burrowing Snagret in the Valley of Repose, dropping an Ultra Bitter Spray just outside of where Yoshi/Olimar would be able to reach.
Thorn: A person in the Twilight Princess thread requested that he do a live commentary version of the Cave of Ordeals so that they could hear his frustrated reactions as they happen. Thorn does exactly that...and proceeds to speedrun the cave using a debug glitch that was accidentally left in the game.
"These guys right here (the Hige Higes) have 50x more personality than all of the Jetters combined, and 100x more charm... These guys have been placed on a planet that, let's remember, is flying to another planet to destroy it. The entire Hige Hige fleet is on this planet to die! ... Mujoe and Mechadoc are the biggest assholes."
Younger than They Look: Thorn, Yoshi, and JelloApocalypse joke that Professor Ein is actually fourteen, even though he looks like an old man.
"Allow me to hold you in my silver, human-killing arms."