The 67 Challenge is a hand-wave speed game that asks one brutally simple question: how many times can you wave both hands in 20 seconds?
It sounds easy. It is not.
The concept
You open the app, face the front camera, and wave both hands as fast as you can. The app uses on-device AI — powered by Google’s MediaPipe framework — to count every clean wave repetition in real time. No buttons to press. No rhythm to follow. Just raw, unfiltered hand speed.
At the end of 20 seconds, your score appears. And that’s where the number 67 matters.
Why 67?
67 is the threshold for Legendary status — the elite tier that only the fastest players in the world consistently reach. Most first-time players score somewhere between 15 and 30. Getting past 45 takes practice. Getting to 67 takes obsession.
The score tiers break down like this:
| Tier | Score |
|---|---|
| Keep Training | 0 – 29 |
| Solid | 30 – 49 |
| Elite | 50 – 66 |
| Legendary | 67 and above |
How the detection works
The app runs MediaPipe Hands entirely on your device. No video is ever sent to a server. The model detects both hands simultaneously and counts a rep each time a hand moves in and then back out of frame in a controlled waving motion. Both hands must be visible — single-hand waving doesn’t count.
This makes the game fair for everyone. The AI doesn’t care who you are or where you play. Speed is speed.
Who plays it?
The 67 Challenge has been downloaded by players in over 30 countries. Brazil, Poland, and Australia consistently produce some of the highest scores on the global leaderboard. The game appeals to anyone who is competitive by nature — because the score is immediate, objective, and shareable.
Free to play
The 20-second mode is completely free, with no account or sign-up required. Serious players can unlock VIP mode for a one-time $2.99 payment, which adds 40-second and 60-second game modes — giving you more time to build up truly astronomical scores.
You can also play in a browser at play.67challenges.com without any download.
Why it goes viral
When you hit a Legendary score, the app generates a shareable score card. Players post these to TikTok and Instagram — and friends watch the video to see the technique, then download the app and try to beat it. The loop is: play → share → challenge someone → repeat.
If you haven’t tried it yet, download the app free on Android or iPhone and see what tier you land in. Then try to beat it.