A browser game where you brush a cat without getting caught is suddenly going viral.
Brush Jjaemu was created by Byeori (@artbyeori), a South Korean digital artist and illustrator known for fanworks inspired by games and animation.
Around a week ago, he released the game, and it has already started spreading across social platforms worldwide.
The first big spark came from his announcement post on X, which reached nearly 24M views.
빗질해주세요https://t.co/n2D67rBdxI pic.twitter.com/ym9THI1RtJ
— 벼리 Byeori (@artbyeori) April 15, 2026
The game itself is extremely simple.
You swipe your mouse or touchscreen to brush a cat. The longer you keep brushing, the higher your score climbs. But if you push too far and trigger the cat's darker side, the run ends instantly.
The concept is instantly understandable, visually funny, and frictionless to try. There is no app download, no setup, and no long explanation needed. Users can discover it in a social post, open it immediately, and start playing within seconds.
That is also why it is translating so well into content.
People are posting basic gameplay clips on TikTok and getting strong reach. Others are sharing unusually high scores, sometimes with their hands visible, making the videos feel like mini tutorials or proof-of-skill posts.
One example: @tiktokcuanam2 hit 2M views despite having only three previous posts with low viewership, none related to the game.
At first it looks harmless. You are just brushing a cat. But the longer you last, the more unstable the moment feels, and the sudden jumpscare ending gives each run a payoff that is both funny and easy to clip.
That is where the Flappy Bird comparison starts to make sense.
Like Flappy Bird, the game is simple enough to understand immediately, short enough to replay endlessly, and frustrating enough to make people want one more try. But it adds something extra too: a small emotional shock that makes the failure feel more memorable and more shareable.
That is what makes it feel less like just another browser toy and more like an actual viral game loop.
Short session. Fast failure. No friction. Strong reaction, and a viral hit.
That is usually enough.