The popular app is sweeping through the country, transforming dogs and cats into cute new creatures with round and furry mouse-style ears.
Ask any loving pet owner to scroll through images on their phones and dozens of photos will inevitably pop up, revealing their glorious animal friend in a number of adorable poses. If you were to look through a pet owner’s photo collection in Japan, though, chances are you might stumble upon a weird-looking creature like this.
The strange mutation is not the result of some bizarre breeding experiment, thankfully. It’s just a mind-bendingly cute image created with the help of a new app called Cymera that’s becoming hugely popular with pet owners in Japan.
▼ The trend is quickly growing, with a huge number of cats now being transformed into mouse-like creatures online.
The app, which was created by South Korean company SK Communications, allows users to manipulate images with a number of different photo editing options. The rounded ear feature caught on quickly in Japan, with pet owners loving the way the small change transforms the look of the whole animal.
While cats are the natural choice for the inherent irony of a mouse-like transformation, a number of other animals have been pictured sporting the new look too.
This pup looks particularly well-suited to the round ear trend.
While this one gets the extra addition of a drawn-on tail to complete the makeover.
Ferrets look good in mouse ears!
As do rabbits.
While this pup looks like an adorable little baby bear!
The app’s realistic effect is incredibly impressive, with the round Mickey Mouse-style ears seamlessly blending in to match each individual animal’s shape and colouring. To get in on the photo trend, the Cymera app can be downloaded for Android from here and for iOS here. And if you’d like to add your beloved animal to the growing number of round-eared creatures from Japan online, don’t forget to add the hashtag #サイメラ (Cymera) to your image!
Top Image: Instagram/yu3020ka
[ Read in Japanese ]

Japan gets swept up in creative new “cherry toast” trend 【Photos】
Adorable, hopping shiba dog can’t contain its excitement about seeing its beloved owner
“Watermelon dress” trend sweeps Japan 【Photos】
Cute Miniature Shiba Inu dog sisters from Japan never leave each other’s side
Smiley Jack Russell from Thailand is one of the cutest dogs on Instagram!
Our 52-year-old pole dancing reporter shares his tips for achieving your New Year’s exercise goal
Starbucks Japan releases new Frappuccino and latte for Valentine’s Day
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
Giant hotel rooms in Osaka reflect the new non-niche face of travel in Japan.
How lucky are the themed retro video game lucky bags from this shop in the Tokyo boonies?
Weaving history, art and innovation together in a new range of Japanese yukata
Here’s what our bachelor writers ate over the New Year’s holiday in Japan
Stylish, green and eco-friendly modern urban village to be built in the heart of Tokyo by 2023
Godzilla-shaped ice cream on sale in Tokyo near the sight his most adorable rampage
What’s inside Starbucks Japan’s fukubukuro lucky bag for 2026?
10 times to avoid traveling in Japan in 2026
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Top Japanese cosplayer Enako returns to Comiket after 6 years, creates mayhem with admirers
Umamusume anime girl plushie recalled for having parts she absolutely should not have【Pics】
We ate sushi made from Japan’s most expensive tuna ever【Taste test】
Princess Mononoke magnets return just in time to treat yourself to awesome anime decorations
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Starbucks Japan releases new zodiac chilled cup drink for 2026
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
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
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Human washing machine pods coming to Japanese hotels【Photos】
Japanese pet owner photographs cats in hats made from the cats’ own hair 【Pics】
Adorable pet dog’s Japanese-style housecleaning video convinces the Internet he’s a very good boy
Cute Instagram cat teaches us about Japanese culture with hilarious cosplay photo collection
“Cat men” and “catnomics” becoming unprecedented trends in Japan
Cute cat shows off incredible skills with cup-and-ball game【Video】
Cute twin cats lavishing love on each other is the sweetest thing you’ll see today【Pics & Videos】
Cute Shiba Inu trio has Internet in stitches over classic stakeout routine
Having a bad day? You need to know this hashtag that will bring you peace, joy, and cute animals
Adorkably stylish cosplay cats remind us to adopt pets instead of buy them 【Photos】
Knitted cat scarves: the latest trend to take the Japanese feline fashion world by storm
Japanese Shiba Inu shows even the dog world’s biggest goofs can have elegant table manners【Video】
W.T.F. Japan: Top 5 most famous pet dogs in Japan【Weird Top Five】
We test out 100-yen shop Halloween pet accessories on a purrfectly cute assistant
Picture-perfect kitty cat with a single, heart-shaped spot on its back is an Instagram star
Thai cat “adopts” litter of chihuahuas, protects them adorably 【Pics】
Leave a Reply