
End of the line for the gamer fish that became some of the very best.
A few weeks ago, Pokémon anime protagonist Ash/Satoshi finally achieved his dream of winning the Pokémon World Championships. With this goal accomplished, some fans speculated that Ash would be stepping down as the anime’s main character, but that doesn’t seem to be the direction the series is going in.
However, there are some other world-famous Pokémon Trainer champions who will be retiring this month: the Pokémon video game-playing fish of Japanese YouTube channel Mutekimaru Channel.
▼ One of the Mutekimaru fish battling against Legendary Pokémon Kyogre
The Mutekimaru Channel first caught Pokémon fans’ attention back in the summer of 2020, when it began featuring videos of a Siamese fighting fish swimming around a tank visually divided into separate sections. Each of those sections was mapped to correspond to a button input on the controller for a Nintendo GameCube running 2002’s Pokémon Sapphire, thereby letting the fish play the game.
Over the course of the next two and a half years, Mutekimaru Channel’s team of aquatic gamers won gym badges, uncovered glitches that humans hadn’t been able to for nearly two decades, and eventually finished Sapphire, becoming true Pokémon Masters.
It’s been an incredible heartwarming ride (or swim), but now it’s coming to a close, as Mutekimaru Channel announced, appropriately, in a Pokémon Sapphire-style video.
“Oh, Mutekimaru! How ya been?” asks the elderly man to the Pokémon Trainer, with the rest of the conversation going:
“I heard you quit your job, and you haven’t been updating your YouTube channel at all. What’s the deal?…Hmm…I see…Sounds like ya came to this decision after giving it a lot of thought. So in any case, if I’m hearing ya right, you’re closing down the Pokémon-playing fish project, is that right?”
“Yes.”
“Hmm…well, that’s understandable. You worked really hard at it over the last two years. Anything else you wanna tell everyone?”
“Yes.”
“Hmm…I see…so you wanna say ‘Thank you everyone, for watching until now?’”
“Yes.”
“Yeah…letting people know you appreciate them is a good thing. Anything else?”
“Yes.”
“OK…you made an ending sequence, and you want everyone to watch it? All right. But it’s as poorly edited as all your other videos, ain’t it? Ah well, we’re coming up to the end, so I’ll show everyone anyway.”
▼ The ending sequence (despite the self-deprecating introduction, the editing isn’t bad at all)
Mutekimaru directs viewers more earnestly with a direct message during the sequence.
“I started this channel when the pandemic was really bad. I had a lot of free time on my hands living the stay-home lifestyle, and started because I wanted there to be more fun video content. I thought I’d probably shut it down in six months or so, but thanks to all of your support, I could keep going until now.”
However, Mutekimaru’s fish’s aquariums and the game-playing/video-making equipment currently take up an entire room in his home, but he’ll soon be going through a “change of lifestyle” and won’t even have space for the fish’s habitats, so he’s come to the decision to bring his YouTube channel to an end.
Don’t worry about the fish, though. They’ll be going to their new home at Mutekimaru’s parent’s house, where the family will be taking care of them and he can still check up on them when he comes to visit. He’s also posted a detailed video about the design of the system by which his fish were able to play video games, so if anyone wants to pick up the mantle he’s leaving behind, here’s how to get started.
On the plus side, while Mutekimaru won’t be posting any new videos to his channel, his old ones will remain up. He’s also planning a special farewell video, which will stream on the Mutekimaru Channel here at 6 p.m. on December 11.
Source: Direct correspondence
Images: YouTube/むてきまるちゃんねる -Mutekimaru Channel-
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!



This pet fish in Japan is trying to beat Pokémon Sapphire, and it’s already won two gym badges【Video】
A team of fish in Japan has beaten Pokémon Sapphire【Video】
Japanese fish that beat Pokémon video game passes away
A Pokémon glitch no one discovered in 18 years has been found…by a pet fish in Japan?!?【Videos】
Pokémon-playing fish commit credit card fraud against owner in Japan via Nintendo eShop【Video】
Family Mart’s Shibuya Cat Street shop hosts first-ever rescue cat photo exhibition for Cat Day
Ghibli’s Kiki’s Delivery Service returns to theaters with first-ever IMAX screenings and remaster
Survey finds that one in five high schoolers don’t know who music legend Masaharu Fukuyama is
Feast your eyes on yet more adorable 8-bit GIFs depicting daily life in Japan
Japan has only one airport named after a samurai, so let’s check out Kochi Ryoma【Photos】
New Japanese menstrual product seeks to help women spot unidentified iron deficiencies
Sega’s Like a Dragon yakuza teaches “useless” English, let’s use it to learn some useful Japanese
Awesome Japanese rice porridge bread is just about the easiest thing to make in the world【Photos】
Japan’s new luxury sightseeing train will show you part of the country most foreigners never see
7-Eleven Japan’s sakura sweets season is underway right now!
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Is Sapporio’s Snow Festival awesome enough to be worth visiting even if you hate the snow? [Pics]
Japan has trams that say “sorry” while they ride around town…but why?
Tokyo Skytree turns pink for the cherry blossom season
Highest Starbucks in Japan set to open this spring in the Tokyo sky
Japan’s new “Cunte” contact lenses aren’t pronounced like you’re probably thinking they are
Shibuya Station’s Hachiko Gate and Yamanote Line stairway locations change next month
Yakuzen ramen restaurant in Tokyo is very different to a yakuza ramen restaurant
Starbucks Japan adds new sakura Frappuccino and cherry blossom drinks to the menu
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Pokémon Ruby and Sapphire species are coming to Pokémon GO this week【Video】
New starter Pokémon and setting for upcoming Pokémon Sun and Moon games revealed 【Video】
League of Pokémon? Fans aren’t too happy about new Pokémon MOBA game from China’s Tencent【Video】
Gigantic, kaiju-class Pokémon battles are part of the new Pokémon Sword and Shield games【Video】
Pokémon GO game adds Sableye, Banette, more Hoenn Pokémon
Mouthwatering Pokémon KitKat “ad” has us dreaming of the future of Japanese sweets【Video】
Survey reveals the most-played Pokémon games in Japan among other generational trends
This official Pokémon horror video is surprisingly terrifying【Video】
New Pokémon games coming to Nintendo Switch and 3DS this fall!【Videos】
Nintendo’s been hiding a secret about Pokémon’s Snorlax for 20 years 【Video】
You play the newest Pokémon game, Pokémon Smile, by brushing your teeth in real life【Video】
Cat blows everyone’s minds by looking at goldfish character in Pokémon Go game
Pokémon is going open-world with brand-new Pokémon Scarlet and Violet games【Video】
Pokémon finally comes to iPhone and Android as the augmented reality game Pokémon GO 【Video】
Old-school Pokémon Champions Red and Blue return in latest new Pokémon Sun & Moon trailer 【Video】