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Unus Annus
Season 1
Episode 171

What the Hell is a Pink Trombone?

May 2, 2020

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Unus Annus - S1 - E171

Mark and Ethan play around with Pink Trombone, an app with a model of a fully interactable human vocal tract that can synthesize various sounds. The two later discuss the complexities of forming said sounds within the larynx (the human organ more commonly known as the voice box) and look up Utterance robot shortly before ending the video.

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Unus Annus: Season 1 - 101 Episode s

1x121 - Mark and Ethan Get a Full Body Scan to See What Secrets Lay Hidden Within (and learn their body fat)
March 13, 2020
Life is about understanding one's self. So what better way than to have an enormous machine shoot x-rays through your body to give you a complete overview of your exact body composition!
1x122 - Mark Needs To Rub Ethan and Only His Mom Can Help Him
March 14, 2020
Mark's mom was a licensed massage therapist at one point in her life. Does her son carry the innate talents to allow Ethan to finally get the Rub-Down he deserves?
1x123 - 2 Idiots Get Crushed by 18-Foot Giant Snakes
March 15, 2020
We join Jay's Prehistoric Pets to see some amazing reptiles! Lizards, Alligators, and GIANT SNAKES!! Will we be eaten alive?
1x124 - Beer Sauna: Turning a Portable Sauna into a Portable Hell
March 16, 2020
Mark and Ethan simulate a sauna using a home steamer while substituting hot spring steam with vaporized alcoholic drinks; Mark's consisting of six cans of Red Bull and Ethan's from two bottles of High Life. Near the end, while they're thinking of ideas for their next video, Evan, one of Unus Annus' crew members, suggests a Pee Sauna, to which the two reluctantly agreed to do in the near future.
1x125 - Mark and Ethan Hunt The World's Most Wanted Criminals
March 17, 2020
When ,000,000 is on the line, Mark and Ethan will stop at nothing(?) to find and capture America's Most Wanted Criminals.
1x126 - Unus Annus Carves the Roast Beast
March 18, 2020
How the Grinch Stole Christmas (with Jim Carrey) is the greatest film ever created. This cannot be disputed.
1x127 - 5 Weird Apps That Predicted Our Death
March 19, 2020
It's 2020 people. Get with the times. Go into that app store, and find yourself a free app that will predict your future with 100% certainty. The future is now. Much like your death.
1x128 - We Tried a Labor Pain Simulator
March 20, 2020
Mark and Ethan will never know the TRUE feeling of child labor, but today they attempt to simulate that miracle.
1x129 - Recreating the Miracle of Childbirth
March 21, 2020
Childbirth is such a beautiful thing! And here at Unus Annus we are experts at taking something beautiful and transforming it into something ever better!
1x130 - Mark and Ethan Are Now Fathers
March 22, 2020
After 2 days of labor and delivery, Unus and Annus have given birth to 2 beautiful baby boys! Now they get to experience the joy of fatherhood.
1x131 - We Force James Charles to Run a Military Obstacle Course
March 23, 2020
James Charles joins us as we attempt to run a Military Obstacle Course!
1x132 - Desperately Trying To Not Touch Our Faces
March 24, 2020
Mark and Ethan test how long they can last without touching their faces, a challenge that was sparked as a result of the COVID-19 pandemic. At the end of the video, Mark and Ethan enlist their audience to keep an eye out for every scene in future Unus Annus videos where they touch their faces while under quarantine. For every reported scene, Mark and Ethan were to donate 100 dollars each to charity, as part of their #TouchusAnnus initiative.
1x133 - Reddit 50/50: Two Player Edition
March 25, 2020
Reddit 50/50 is like a coin toss, where the outcomes are severe mental scarring that will last for the rest of your life... or not that!
1x134 - Going on an Internet Scavenger Hunt
March 26, 2020
Mark and Ethan scour the worldwide web to find the internet's funniest, cringiest, and most satisfying images.
1x135 - Having an Adventure In VR Chat Because We Can't Go Outside
March 27, 2020
Mark and Ethan play Climbing Trials in VRChat while in quarantine due to the COVID-19 pandemic.
1x136 - Amazon Shopping for the Apocalypse
March 28, 2020
What if you had only one bag to grab before sprinting for your life into the woods? Would you be prepared for an apocalypse situation? If not, turn to your lord and savior, AMAZON, for all your survival needs!
1x137 - Whom Would Eat Whomst First in a Zombie Apocalypse?
March 29, 2020
In every Zombie Apocalypse that I've ever been through, I've had to make some difficult choices. Do Mark or Ethan have the GUTS to get through this?
1x138 - Ultimate YouTuber Boxing Showdown
March 30, 2020
Recruited from all corners of the internet, Mark and Ethan create their own YouTuber Boxing Teams to try and find out who has the strongest punch.
1x139 - The Deep End of Omegle: Risky Boogaloo
March 31, 2020
Mark and Ethan browse through Omegle's various video chat feeds in an attempt to find each other using the site's common tags.
1x140 - Where in the World is Unus Annus?
April 1, 2020
Mark and Ethan play GeoGuessr to test their geographic knowledge.
1x141 - Mark Builds a Pillow Fort for the Very First Time
April 2, 2020
After building a pillow fort for the first time, Mark encourages his viewers to do the same and upload their work to social media under the hashtag #FortusAnnus.
1x142 - Mark's 1 Weird Talent Leaves Ethan Absolutely Speechless
April 3, 2020
Following up on their #MarchusAnnus challenge, Mark and Ethan were to demonstrate their newly acquired talents. Although, Mark managed to successfully juggle, Ethan never perfected his kickflip, which he jokingly substituted with a montage of various skateboarding stunts from other skateboarders. Additional contest winners were showcased at the end of the video.
1x143 - Wikifeet: A Tale of 2 Tootsies
April 4, 2020
Mark and Ethan explore wikiFeet, a photo-sharing foot fetish website.
1x144 - We Made Every YouTuber Battle in the Hunger Games
April 5, 2020
Mark and Ethan play Hunger Games Simulator using caricatures of various YouTubers, including themselves and their Unus Annus alter egos.
1x145 - We Google Each Other to Find Our Darkest Forgotten Sins
April 6, 2020
Mark and Ethan google each other in an attempt to find out as many obscure facts as possible.
1x146 - We Played Mad Libs And Ran It Through Google Translate
April 7, 2020
If you've ever played a classic game of Mad Libs, then you know it is often... not very funny. Luckily for us, Mark and Ethan have devised a foolproof plan to create humor where there is none.
1x147 - Mark and Ethan Desperately Try and Name a Single State in the USA
April 8, 2020
Mark and Ethan test their geographical knowledge of the Unites States by playing various geography quizzes that range from guessing the location of a state to its numerous cities around the country.
1x148 - Speed Reading 1000+ WPM to Gain a Complete Understanding of All Human Knowledge
April 9, 2020
Mark and Ethan try out speed reading.
1x149 - What is the Least Viewed Video on YouTube?
April 10, 2020
Mark and Ethan explore Incognitube, a website that showcases random YouTube videos with less than 100 views.
1x150 - We Found Websites That The World Forgot About
April 11, 2020
Mark and Ethan explore "Forgotten Websites" subreddit and the Wayback Machine in search for obscure web pages on the internet. At the time of making this video, there were a total of 1.5 billion websites, of which less than 200 million were still active.
1x151 - The Scariest True Stories on the Internet
April 12, 2020
Mark and Ethan read a number of, supposedly authentic, scary stories off the internet that have happened to people in real life. At the end of the video, the two encourage Unus Annus viewers to post their scariest encounters onto the channel's subreddit for them to read at a later date.
1x152 - How to NOT be the Perfect Boyfriend
April 13, 2020
The two are looking over the "25 Ways to be a Better Boyfriend" guide from Inspiring Tips website. After reading the page, Mark criticizes its contents, stating that the article itself is problematic and damaging to people who are simply looking for dating advice. He specifically focusses on the 23rd example of the article that encourages the reader to stay in a hostile relationship in hopes of fixing it, even if it means being emotionally neglected or physically abused by their partner. At the end of the video, Mark redirects his viewers to the description of the video for helpful links regarding domestic violence, urging anyone in need to seek help.
1x153 - Mark and Ethan Find The Lost City of El Dorado
April 14, 2020
Mark and Ethan look up various topics revolving around the mythical city of El Dorado. After stumbling onto Angel Falls via Google maps, the duo tries to connect the two locations together, with Ethan finding an article discussing City of the Beasts, only to later realize that it was a young adult novel, much to his disappointment.
1x154 - Mark and Ethan Bet Everything on a Wikipedia Race
April 15, 2020
Mark and Ethan compete against each other in a Wikipedia race, a game in which a player is suppose to get from one, predetermined or random, page to a designated article using only hyperlinks. Before their second run, Mark wagered for the loser of the race, this being Ethan, to donate 50 subscriptions to viewers on their next Twitch livestream, as well as engage in verbal self-deprecation. The third and final run, which lasted slightly over 16 minutes, ended in a draw, as neither of them could find their desired article.
1x155 - The Creepiest Videos on Youtube
April 16, 2020
Mark and Ethan watch, what are considered to be, some of the most disturbing videos on YouTube. At the end of the video, Mark and Ethan ask their audience to post any of their own creepy or weird videos under the hashtag #CreepusAnnus or #CrepeAnnus
1x156 - Help Us Break a YouTube World Record
April 17, 2020
In an attempt to beat the world record for the fastest YouTube channel to gain 1 million subscribers in a single day, Mark and Ethan ask their audience to subscribe and spread the word of their newly created account, Norbert Moses. At the time, the record holder was Tati Westbrook with 1,281,750 subs after her hit piece against James Charles. Norbert Moses' content consisted of a single promotional channel trailer. Its YouTube icon was a deepfake image of Mark and Ethan's merged faces with the channel banner being the thumbnail from "Where in the World is Unus Annus?" video. The channel failed to beat the record, ending on 612,000 subscribers and was deleted a day after the video's post.
1x157 - 2 Men 200 Accents
April 18, 2020
Mark and Ethan attempt to speak in French, Scottish, Irish and English accents.
1x158 - The Illuminati... Do They Really Exist?
April 19, 2020
Mark and Ethan explore the history behind Illuminati, as well various conspiracy theories and memes that revolve around UFO sightings and supposed US military cover-ups.
1x159 - Using Google Maps to Find the Lost City of Atlantis
April 20, 2020
Mermaids. Piles of Gold. Talking Fish. All this and more lie before us in the great city of Atlantis... and today we find it.
1x160 - Reading YOUR Scariest True Stories
April 21, 2020
Mark and Ethan read viewer-submitted stories from the Unus Annus subreddit and from the previous video's comment section.
1x161 - Mark and Ethan Take a Personality Test
April 22, 2020
What type of human being is the joint creature known as Unus Annus? What characteristics would this amalgamation of horror entail? Only one way to find out...
1x162 - Will AI Soon Take Over Humanity As We Know It?
April 23, 2020
Mark and Ethan explore the capabilities of advanced machine learning algorithms; from sentient machinery and full AI facial reconstruction to film restoration and deepfakes.
1x163 - Running Internet Drama through Google Translate
April 24, 2020
There are many universal languages. Love. Music. Art. ...Tea? Using the most advanced computational technologies, Mark and Ethan determine if internet drama transcends the limitations of the written word.
1x164 - The Secret Unus Annus No-Touchy-Touchy Hand Shake
April 25, 2020
Mark and Ethan practice secret handshakes separate from another via video chat. Half way through the video, the duo makes up an Unus Annus handshake under the name #HandMyAnnus (Mark initially wanted to call it #HandusAnnus, but later went with Ethan's suggestion) as a memento of their time spent together on the channel.
1x165 - Two Male Men Judge Female Women on Their Beauty
April 26, 2020
We did it with men, so its only fair we do it with women too: Let's find out what TRUE beauty is.
1x166 - Bored? Press This Button.
April 27, 2020
Mark and Ethan browse Bored Button, a website that sends its users to numerous sub-pages where they can either play mini-games or look up various jokes and trivia.
1x167 - Don't Go in the Ocean... Ever.
April 28, 2020
Mark and Ethan browse through the myths behind the Bermuda Triangle, as well as discuss various mysteries and sea creatures that lurk beneath the deep sea.
1x168 - We Explore the Most MYSTERIOUS Mysteries of our Wildy Mysterious Mystery Moon of Mysteries
April 29, 2020
Mark and Ethan browse and discuss phenomena relating to celestial objects around the solar system, as well as various mysteries and conspiracy theories that surround them.
1x169 - We Looked at Unus Annus Memes
April 30, 2020
Did you know Unus Annus has its own subreddit? We kinda forgot.
1x170 - Is Mark a Masochist?
May 1, 2020
Here at Unus Annus, we've explored countless mysteries over the past few months. We've discovered El Dorado, Atlantis, and even revealed the horrors of our very own oceans. But no mystery is NEARLY as mysterious as Mark's private life. Let's explore!
1x171 - What the Hell is a Pink Trombone?
May 2, 2020
Mark and Ethan play around with Pink Trombone, an app with a model of a fully interactable human vocal tract that can synthesize various sounds. The two later discuss the complexities of forming said sounds within the larynx (the human organ more commonly known as the voice box) and look up Utterance robot shortly before ending the video.
1x172 - Professional Fetish Scientists Rank the Best/Worst Fetishes of 2020
May 3, 2020
Mark and Ethan look up and discuss obscure fetishes.
1x173 - Mark and Ethan Desperately Attempt to Feel Something
May 4, 2020
Mark and Ethan attempt to increase their heart rates by watching various adrenaline-inducing videos, while monitoring their contractions (beats) with Apple Watches. Mark got this idea from watching Crank, a movie about a hitman who was poisoned and must keep his adrenaline constantly flowing to stay alive. The videos showcased were compiled by Amy.
1x174 - An A.I. Generates Our Worst Nightmare
May 5, 2020
Mark and Ethan look through A.I. generated images of people's faces.
1x175 - Are Reptilian Humanoids Living Among us?
May 6, 2020
Mark and Ethan explore the reptilian conspiracy theory, the idea of shapeshifting reptilian humanoid creatures ruling the world's governments from the shadows and dictating the outline of human societies.
1x176 - Like It or Not... This is What The New Human Looks Like
May 7, 2020
Mark and Ethan look up a list of people with genetic and physical abnormalities that were labeled as having superpowers. Some examples shown in the video include a man who could consume indigestible objects and myostatin deficiency that would cause people and animals to develop excessive muscles. Throughout the video's run, Mark used an air inflating machine to blow up a giant beach ball in the background that he got from Ethan in one of their previous Unus Annus skits.
1x177 - Eating Only Onions for 24 Hours: How Many Onions Does it Take to Kill a Man?
May 8, 2020
As Shrek once told me in a dark alley on a stormy night, "Onions have layers..." That message has been cemented into my mind among other things Shrek whispered into my ear. But in this video we discover the true versatility of the mythical Onion and if there is such a thing as too much Onion.
1x178 - Unus Annus ASMR
May 9, 2020
Unus AnnuSMR. You wanted this. You asked for this. You deserve this. Turn out the lights, turn up the volume, and get ready to relax. You deserve this.
1x179 - We Attempted to Create THICC Water
May 10, 2020
Mark and Ethan attempt to recreate Thick-It Water by using common household ingredients. The video leaves off on a "To Be Continued" sign, as the two would later end up drinking the actual product.
1x180 - Making Our Own Gravestones to Prepare For Our Inevitable Demise
May 11, 2020
We're all going to have a gravestone someday, so why not create ours preemptively and really make it our own?
1x181 - How Tall Can A Human Get?: An Impartial Review by 2 Average Height Men
May 12, 2020
Mark and Ethan look up the history of some of the tallest people in the world, real or mythical, with the tallest recorded human being Robert Wadlow at a height of 8'11" (272 cm). Halfway through, Mark goes off-topic about the design of Warhammer's Space Marines; his biggest issue being their large bulky bodies which, realistically, would impair their movement. Near the end of the video, the two find a fake growth serum on Amazon and continue to crack jokes about it till the end of the episode.
1x182 - Mark Teaches Ethan Korean
May 13, 2020
Korean is a beautiful language that Mark is currently learning. However he doesn't really know it that well. But that doesn't stop him from attempting to beam Korean directly into Ethan's brain.
1x183 - Bigfoot is Real and It Ate My Friend
May 14, 2020
Bigfoot. Sasquatch. Another keyword. He goes by many names. But once you see the irrefutable evidence... you will only call him... friend.
1x184 - The End of Unus Annus is Almost Here...
May 15, 2020
A milestone video celebrating the first six months of the Unus Annus channel.
1x185 - We Explore the Unus Annus Subreddit for Your Delicious Memes
May 16, 2020
Once again, we look at all the wonderful, funny, and downright disturbing memes you fine folks have posted on the Unus Annus Subreddit.
1x186 - How Big Can a Nuke Get?
May 17, 2020
Mark and Ethan start the video off by exploring the destructive capabilities of nuclear weapons, which included an excerpt from Kurzgesagt's video regarding nuclear warheads, followed by Baby Maps (a webpage that shows a world map of how many babies are born every second in each country) and Life Stats (a webpage showcasing how much the world has changed in statistics between the current date and the date of the user's birth) from Neal.fun website.
1x187 - How Much Caffeine Does It Take to Kill a Man?
May 18, 2020
Mark and Ethan look up what would be a lethal amount for a single person to individually consume various caffeine-based beverages, pasta dishes and water in one day, separately from one another. Mark later ends the video by performing the Valsalva maneuver, which causes the video's frame to shatter from an implied pressure before the remnant of the glass shard flies towards the screen to show the remaining time till the channel's ultimate deletion.
1x188 - Drinking Real THICC Water... How Bad Does It Taste?
May 19, 2020
Following their failed attempt to brew homemade Thick-It Water, Mark and Ethan order a bottle each from Amazon. After drinking it, the two are visibly disgusted, with Mark noting that the water, at least, tasted better than urine.
1x189 - We Played Strip Poker
May 20, 2020
Mark and Ethan play strip poker, with each player betting their clothes instead of traditional chips, the loser having to strip the amount they bet with. As the two cannot see nor interact with each other, both used their own decks in accordance with the rules. Nearing the end, after losing all of his clothes, Mark goes outside and dives into his pool, with his body floating along the surface. The video then ends with an abrupt jump scare, before cutting back to Mark as he reemerges from the pool and walks off-screen in a crouched position.
1x190 - Harnessing Our Yodeling Power to End The World As We Know It
May 21, 2020
You hear that? Off in the distance? That, my friends, is the sound of two gods screaming into the ether. It is the first sound in the morning and the last sound at night. It is the call to end all calls. It is... THE YODEL.
1x191 - Mark Cooks Blindfolded While Ethan Guides Him Through FaceTime
May 22, 2020
In an attempt to make an omelet while blindfolded, Fischbach straps a phone across his eyes, with its camera facing away from him, and uses FaceTime to communicate with Ethan as he guides Mark through the lens of his camera.
1x192 - We Play the Newlywed Game While Consuming That Which Will Kill the Other
May 23, 2020
The two play an abbreviated version of the Newlywed game, a social game based on a TV quiz show where the participants are required to provide the same answer to subjective questions, unbeknownst to one another, and see how much they know their partner. Adding their own spin to the game, whoever gives the wrong answer has to consume products that would otherwise be lethal to the other, with Ethan having to drink alcoholic beverages (Mark sustains from drinking alcohol as his body cannot properly process it), while Mark has to eat a spoonful of peanut butter (Ethan has a severe peanut allergy, with even the smallest amount being lethal to him).
1x193 - DIY Boob
May 24, 2020
Mark and Ethan fashion a female breast out of everyday household items; Ethan makes his by mixing some flour, water, and 2 eggs, and pouring it into a plastic bag, while Mark stuffs a rubber model of a human foot inside one balloon before placing a fully inflated one under his shirt.
1x194 - We Have the Best Bellies on Youtube
May 25, 2020
Mark and Ethan attempt to learn how to belly dance.
1x195 - The Unus Annus Confessional Booth
May 26, 2020
Mark and Ethan invite random people on Twitter to their temporary "Unus Annus Confessional" Discord server for them to confess anything of their choosing to the two hosts via voice chat. All participants' voices were distorted with a voice changer in order to protect their anonymity. After concluding their final session, Mark and Ethan say one final goodbye to the members and proceed to delete the server.
1x196 - DO NOT OPEN UNTIL 2080
May 27, 2020
Mark and Ethan each set up a time capsule with launch boxes being used as containers; Mark's lunch box is themed around Five Nights at Freddy's and Ethan's around A Goofy Movie.
1x197 - Only UNUS-es May Watch This Video
May 28, 2020
Mark and Ethan compete against each other to see who would amass greater viewership on their channel within the next 24 hours. To participate, the audience had to simply choose to watch one of the two videos that represented each character; Ethan representing Unus and Mark representing Annus. To showcase additional support, viewers on either side could purchase their distinct merchandise or brandish each character's spiral pattern as their user icons; Ethan's Unus spiral would emerge from the upper left corner, while Mark's Annus spiral emerged from the lower left. Both videos contained a series of green screen gags that would later be repurposed by Unus Annus fans to create memes, some of which were showcased on the channel at a later date. Ethan ends his video with "Unus Unus", instead of their usual "Memento mori, Unus Annus". Both videos were uploaded on the same day, side by side. The winner was announced the following day.
1x198 - Only ANNUS-es May Watch This Video
May 28, 2020
Mark and Ethan compete against each other to see who would amass greater viewership on their channel within the next 24 hours. To participate, the audience had to simply choose to watch one of the two videos that represented each character; Ethan representing Unus and Mark representing Annus. To showcase additional support, viewers on either side could purchase their distinct merchandise or brandish each character's spiral pattern as their user icons; Ethan's Unus spiral would emerge from the upper left corner, while Mark's Annus spiral emerged from the lower left. Both videos contained a series of green screen gags that would later be repurposed by Unus Annus fans to create memes, some of which were showcased on the channel at a later date. Mark ends his video with "Annus Annus", instead of their usual "Memento mori, Unus Annus". Both videos were uploaded on the same day, side by side. The winner was announced the following day.
1x199 - Only Watch from 2:15 to 6:11 --- DO NOT WATCH ANY OTHER PART OF THIS VIDEO
May 29, 2020
The two announce Mark as the winner of Unus Vs. Annus challenge. The video itself showcases four prerecorded clips of Mark and Ethan both celebrating their victory and jeering the other for their loss. The timestamps highlighted in the title of the video sees Mark's triumph over Ethan.
1x200 - DIY Wine
May 30, 2020
Mark and Ethan attempt to make homemade wine from purple grapes. After spending the entire video grape-treading, the two decide to save their grape juice for a later day.
1x201 - Tearing a Phone Book in Half with Our Huge Manly Muscles
May 31, 2020
Mark and Ethan attempt to tear apart a 2010 edition of Greater St. Louis yellow pages. Halfway through, the spine from Ethan's phonebook falls apart, leading him to declare himself a winner, while Mark continues to struggle for the rest of the video, but ultimately manages to rip the book in half.
1x202 - 2 Complete Amateurs Enter a Body Building Competition
June 1, 2020
Welcome to the First Annual Unus Annus Body Building Competition Extravaganza! Who will wear the crown of best bod?
1x203 - BLACK LIVES MATTER. Resources and How You Can Help in the Description.
June 2, 2020
The video opens up in complete silence with an intro card reading "Please spend these 8 minutes and 46 seconds taking action. Check the description for resources." The rest of the video is focused on a single frame that reads "BLACK LIVES MATTER," in reference to the murder of George Floyd and the subsequent protests that followed soon after.
1x204 - Crushing Watermelons Betwixt Our Mighty Thighs
June 3, 2020
Mark and Ethan attempt to crush watermelons with their thighs. Both of them eventually tire and try other methods, with Ethan bashing his watermelon with various objects to break it apart and Mark biting the top off before splitting it open with his bare hands.
1x205 - Morphing Our Bodies Into Superhero Poses
June 4, 2020
Mark and Ethan mimic superhero poses from various comic books.
1x206 - Reacting to Your Hilarious Green Screen Memes
June 5, 2020
Mark and Ethan react to various memes of their green screen edits from the Unus Vs. Annus challenge made by the Unus Annus community. At one point, Mark states that the initial rivalry between the two was an elaborate ruse to get people to do a green screen competition.
1x207 - Mark Teaches Ethan to Read with Hooked on Phonics
June 6, 2020
Mark jokingly teaches Ethan how to read using Hooked on Phonics, a website dedicated to helping children learn basic reading skills through various mini-games.
1x208 - Ethan Roasts Mark for 15 Minutes Straight
June 7, 2020
Mark is a bad bad man who needs to be exposed for his sins. Ethan is just the right big bold boy to roast Mark to a crisp!
1x209 - There's Something Horribly Wrong with This Picture...
June 8, 2020
After going over a few illustrations by Trevor Henderson (a Canadian horror artist known as the creator of Siren Head, Long Horse, Cartoon Cat and others alike), Mark and Ethan decide to make their own picture within the next 30 minutes by hiding distorted visual elements in normal looking images. After comparing their results, the two ask their audience to submit similar type of work to the Unus Annus subreddit for them to potentially make a video on it. Nearing the end of the segment, Ethan exclaims "Well, thank you for watching and don't forget, always look behind you", followed shortly by a brief flash of a disturbing, shadowy figure (featured on the "HONESTLY TERRIFYING" thumbnail) overlapping the screen, as the video comes to a close.
1x210 - Attempting to Build IKEA Furniture Without Instructions
June 9, 2020
Carpentry may have proven too difficult for Ethan to master. Perhaps assembling IKEA furniture is more his speed. Too bad he lost the instructions.
1x211 - Mark and Ethan Become United States Citizens
June 10, 2020
ah, America. Land of the free(?) Home of the brave(?) Do Mark and Ethan have what it takes to be top tier US citizens?
1x212 - We Made Fanart for Each Other
June 11, 2020
Fanart is the purest expression of appreciation. It is love distilled. It is light purified. Today, Mark and Ethan express their undying appreciation for each other through the delightful medium of fanart.
1x213 - Our Fans Try to Scare Us with Their Homemade Creepypasta
June 12, 2020
We tried our best at haunting the internet. But we should have known that we were no match for the demonic artistic ability of our own fans.
1x214 - Recreating Childhood Photos
June 13, 2020
Although we may never be able to travel back to our childhoods, that won't stop us from recreating some of our favorite photos from that innocent time.
1x215 - Will We Break the Boards... Or Will They Break Us?
June 14, 2020
Breaking boards of wood is the foundation upon which all forms of Martial Arts are based on. Karate... Tae Kwon Do...Kung Fu... We attempt to master every single discipline in one fell CHOP!
1x216 - Finding the Most Cursed Image on the Internet
June 15, 2020
BEWARE ALL WHO ATTEMPT TO WATCH THIS VIDEO! It's a curse or be cursed world in here. Actually though, this video is gross and horrible and upsetting.
1x217 - Learning to Cry on Command to Increase Our YouTube Views
June 16, 2020
Mark and Ethan try and force themselves to cry on command by thinking of personal loss and watching emotional videos. At the end of their segment, Mark asks their audience to post a tutorial of them crying on command under the hashtag #CryusAnnus.
1x218 - Pee Sauna
June 17, 2020
Following up on their idea from the Beer Sauna video, Mark and Ethan use their own urine as a vaporized substance for the home steamer.
1x219 - Building IKEA's Hardest Piece of Furniture Without Instructions is Impossible
June 18, 2020
Ikea is known for easy-to-follow instructions for simple pieces of furniture that we are gladly able to hah just kidding this is impossible.
1x220 - Becoming One With the Horse
June 19, 2020
Mark and Ethan attempt to imitate the movement of a trotting horse after seeing an online video of Ayla Kirstine doing the same.
1x221 - The Ultimate Paper Airplane Showdown
June 20, 2020
Mark and Ethan compete against each other to see whose paper planes can travel the farthest, with Mark coming out as the winner.

Unus Annus: All seasons

S0: Specials
20 Episode s
S1: Season 1
368 Episode s

1x121 - Mark and Ethan Get a Full Body Scan to See What Secrets Lay Hidden Within (and learn their body fat)

1x122 - Mark Needs To Rub Ethan and Only His Mom Can Help Him

1x123 - 2 Idiots Get Crushed by 18-Foot Giant Snakes

1x124 - Beer Sauna: Turning a Portable Sauna into a Portable Hell

1x125 - Mark and Ethan Hunt The World's Most Wanted Criminals

1x126 - Unus Annus Carves the Roast Beast

1x127 - 5 Weird Apps That Predicted Our Death

1x128 - We Tried a Labor Pain Simulator

1x129 - Recreating the Miracle of Childbirth

1x130 - Mark and Ethan Are Now Fathers

1x131 - We Force James Charles to Run a Military Obstacle Course

1x132 - Desperately Trying To Not Touch Our Faces

1x133 - Reddit 50/50: Two Player Edition

1x134 - Going on an Internet Scavenger Hunt

1x135 - Having an Adventure In VR Chat Because We Can't Go Outside

1x136 - Amazon Shopping for the Apocalypse

1x137 - Whom Would Eat Whomst First in a Zombie Apocalypse?

1x138 - Ultimate YouTuber Boxing Showdown

1x139 - The Deep End of Omegle: Risky Boogaloo

1x140 - Where in the World is Unus Annus?

1x141 - Mark Builds a Pillow Fort for the Very First Time

1x142 - Mark's 1 Weird Talent Leaves Ethan Absolutely Speechless

1x143 - Wikifeet: A Tale of 2 Tootsies

1x144 - We Made Every YouTuber Battle in the Hunger Games

1x145 - We Google Each Other to Find Our Darkest Forgotten Sins

1x146 - We Played Mad Libs And Ran It Through Google Translate

1x147 - Mark and Ethan Desperately Try and Name a Single State in the USA

1x148 - Speed Reading 1000+ WPM to Gain a Complete Understanding of All Human Knowledge

1x149 - What is the Least Viewed Video on YouTube?

1x150 - We Found Websites That The World Forgot About

1x151 - The Scariest True Stories on the Internet

1x152 - How to NOT be the Perfect Boyfriend

1x153 - Mark and Ethan Find The Lost City of El Dorado

1x154 - Mark and Ethan Bet Everything on a Wikipedia Race

1x155 - The Creepiest Videos on Youtube

1x156 - Help Us Break a YouTube World Record

1x157 - 2 Men 200 Accents

1x158 - The Illuminati... Do They Really Exist?

1x159 - Using Google Maps to Find the Lost City of Atlantis

1x160 - Reading YOUR Scariest True Stories

1x161 - Mark and Ethan Take a Personality Test

1x162 - Will AI Soon Take Over Humanity As We Know It?

1x163 - Running Internet Drama through Google Translate

1x164 - The Secret Unus Annus No-Touchy-Touchy Hand Shake

1x165 - Two Male Men Judge Female Women on Their Beauty

1x166 - Bored? Press This Button.

1x167 - Don't Go in the Ocean... Ever.

1x168 - We Explore the Most MYSTERIOUS Mysteries of our Wildy Mysterious Mystery Moon of Mysteries

1x169 - We Looked at Unus Annus Memes

1x170 - Is Mark a Masochist?

1x171 - What the Hell is a Pink Trombone?

1x172 - Professional Fetish Scientists Rank the Best/Worst Fetishes of 2020

1x173 - Mark and Ethan Desperately Attempt to Feel Something

1x174 - An A.I. Generates Our Worst Nightmare

1x175 - Are Reptilian Humanoids Living Among us?

1x176 - Like It or Not... This is What The New Human Looks Like

1x177 - Eating Only Onions for 24 Hours: How Many Onions Does it Take to Kill a Man?

1x178 - Unus Annus ASMR

1x179 - We Attempted to Create THICC Water

1x180 - Making Our Own Gravestones to Prepare For Our Inevitable Demise

1x181 - How Tall Can A Human Get?: An Impartial Review by 2 Average Height Men

1x182 - Mark Teaches Ethan Korean

1x183 - Bigfoot is Real and It Ate My Friend

1x184 - The End of Unus Annus is Almost Here...

1x185 - We Explore the Unus Annus Subreddit for Your Delicious Memes

1x186 - How Big Can a Nuke Get?

1x187 - How Much Caffeine Does It Take to Kill a Man?

1x188 - Drinking Real THICC Water... How Bad Does It Taste?

1x189 - We Played Strip Poker

1x190 - Harnessing Our Yodeling Power to End The World As We Know It

1x191 - Mark Cooks Blindfolded While Ethan Guides Him Through FaceTime

1x192 - We Play the Newlywed Game While Consuming That Which Will Kill the Other

1x193 - DIY Boob

1x194 - We Have the Best Bellies on Youtube

1x195 - The Unus Annus Confessional Booth

1x196 - DO NOT OPEN UNTIL 2080

1x197 - Only UNUS-es May Watch This Video

1x198 - Only ANNUS-es May Watch This Video

1x199 - Only Watch from 2:15 to 6:11 --- DO NOT WATCH ANY OTHER PART OF THIS VIDEO

1x200 - DIY Wine