Sakana/YMMV

"Taisei: Did I try to ride you like a bike last night?"
 * Cargo Ship: Jiro and Cheepii, the Cheapies donut mascot.
 * Ensemble Darkhorse: IT'S MISTER EEL HEAD!
 * For that matter also the crab that Jiro talked to in the first comic strip.
 * As of characters, Genkei has proven to be immensely popular despite his limited screentime. The fact Mad has confirmed him to be a crucial character (most likely regarding ) only added more fuel to the fire.
 * Fan-Preferred Couple: TaiseixYuudai (affectionately titled TaiDai in most cases), so much that the artist even talked about their popularity in a Lifestream. A lot of the fanart of Sakana out there is featuring those two. Because of said popularity,, with JiroxYuudai taking up the mantle.
 * Many Slash pairings are popular enough, but one that sticks out is the ship. Talk about a Crack Ship!
 * Harsher in Hindsight: A lot of Yuudai's traits and behavior become less funny and more heartbreaking once his Dark and Troubled Past gets revealed.
 * Hilarious in Hindsight: This movie. No, really.
 * Ho Yay: Oh boy. Due to Taisei having No Sense of Personal Space, he oozes this. One example is his bromantic relationship with Jiro:


 * And there's of course also Taisei's meeting with Yuudai, where Taisei isn't discouraged at all when Yuudai behaves like a total Jerkass when he tries to find out Yuudais first name just after meeting him and enthusiastically tries every first name he knows, making Yuudai blush. And after Taisei pulls him into a brohug of sorts, he [Yuudai] freaks out like he was being touched in a inappropriate place. And you might want to interprete it like Taisei just being his usual self, but it all seems like Taisei is flirting with Yuudai. It's so blantant that Yuudai even asks Taro if Taisei is gay. Well, he is gay. He is one big ball of happiness that even Yuudai can't resist. It also doesn't help that Yuudai behaves like a massive Tsundere at times. Shippers of course have gone and run with this scenario.
 * This trope seems to be in effect whenever Yuudai and Taisei are alone: Taro leaves to spy on Jiro in disguise and Taisei and Yuudai find themselves alone, waiting for him. Then Taisei is exceptionally nice to Yuudai, making him compliments. Yuudai doesn't believe him at first, and when he finds out he is actually genuine with his kindness, he blushes heavily.
 * I Knew It!: Many fans correctly guessed the true identity of "Cashier Girl":
 * Incest Yay Shipping: Yes, there are Jiro/Taro shippers. The fact they're canonically very close helps.
 * It Was His Sled: Many things concerning the true identities of some characters, namely "Cashier Girl", "Angry Lady" and especially "This Guy"
 * Jerkass Woobie: Yuudai. He's incredibly rude and abrasive to almost everyone he encounters, but this is confirmed to be a defense mechanism due to trust issues His status as this gets increasingly clear in later chapters.
 * The Angry Lady turns out to be this as well. She's quite angry and bitchy, but she used to be a lot sweeter until  Her statement that "flowers don't betray you" just drives this further.
 * Love to Hate: Ryoji Nishimura and his Co-Dragons, Endo and Billy, have picked up a fanbase.
 * An even greater example would be, whose status as a grades-weapon Knight of Cerebus Hate Sink has made him memorable in many fan circles.
 * Memetic Mutation: Whenever Taisei's eye shows up, things are going to be Serious Business/magical things are going to happen.
 * Taro throwing people down stairs whenever he get's serious/angry/protective of Jiro.
 * The reaction of Sakana fans to this movie were, to say the least, hysterical.
 * Jiro's hot new nose.
 * Pugging has become an in-joke between Mad and the fandom. Mad often answers questions about Sakana characters on her Tumblr blog. Whenever a question pops up which can't be answered since it would inevitably spoiler upcoming events in the comic, Mad instead posts a picture of a pug and claims to be too distracted by it's cuteness to answer the question.
 * And let's not forget Taisei's "ravish" line and face.
 * Mexicans Love Speedy Gonzales: Japanese and Korean people adore Sakana, to the point of having a fan translation circulating through the net, as well as having lots of fanart on Pixiv and Twitter.
 * Moe: Jan. Oh Jan. Just look at him enthusiastically presenting the menu, awkwardly waving with one hand in the background and trying to say Taro's name!
 * Moral Event Horizon: crossed the line both In-Universe and out when,  The fact he acts completely unapologetic about just clinches his status as a completely repulsive character.
 * Nightmare Fuel: The face Taisei makes in the last panel of this strip is kinda creepy.
 * A much more serious example are the interactions between Yuudai and . Let's be honest here, is pretty much Fridge Horror personified.