← Back to Game 67 SPEED CHALLENGE

About Us

Our Vision

67 Speed Challenge is an interactive fitness game designed to demonstrate how cutting-edge web technologies can turn normal hardware devices into controller-less motion controllers. By combining the web ecosystem with real-time hand skeleton tracking, we provide players with an immediate, installation-free gameplay experience that motivates movement, fast reflex pacing, and visual-motor engagement.

Technology Stack

We utilize state-of-the-art open source libraries and cloud databases to offer a smooth, secure, and competitive player experience:

  • Google MediaPipe Hand Landmarker: Runs deep learning models directly inside the browser using WebGL acceleration. It localizes 21 coordinates per hand in real-time.
  • Firebase Cloud Firestore: Synchronizes top scores globally, displaying real-time global ranks and distribution percentiles.
  • On-Device Processing: Your webcam video stream is processed purely locally. No images or videos are ever uploaded, safeguarding player privacy.

The Team

Created by independent web developer Steve Yeh. We are committed to pushing the boundaries of web application experiences. By taking popular social media gesture trends and turning them into gamified, verified reaction challenges, we aim to bridge the gap between social media, cognitive reflex training, and modern browser capability.

Why we built this

Short-form video made the “67” hand-pump gesture famous, but most clips are passive to watch. We wanted a free tool that turns the trend into a measurable 20-second challenge: count reps fairly, give instant visual feedback, and let players compare scores without installing an app. The Site also publishes practical guides on setup, training, privacy, and the browser AI stack behind the game.

What you can do here

Editorial standards

Our written guides aim to be practical and original: setup checklists, training structures, privacy explanations, and technology explainers tied to how this game actually works. Engine numbers in articles (combo RPS bands, points-per-rep, peak–valley thresholds) are taken from the live client—not generic filler. Overlapping thin posts were merged into fewer deeper guides so readers are not flooded with near-duplicates.

Feedback and corrections are welcome via the Contact page. If you are evaluating the site as a publisher property, start with the guides library (MediaPipe notes, lighting lab, 7-day plan, scoring math, safety), the game guide, privacy policy, and terms—then play a round on the play page.

作者是誰（Who writes this）

我是 Steve Yeh，獨立網頁開發者，維護 67game.store。這個站沒有編輯部、沒有內容農場外包：遊戲邏輯、MediaPipe 接線、計分表與教學文章都由同一人撰寫與更新。公開身分與程式在 GitHub：stevehelloworld。

寫教學的標準很簡單：講得出客戶端裡的數字。連擊門檻 3.5／6.0／8.5 RPS、單次 10／20／35／60 分、振幅 handSize × 0.33、平滑 0.35／0.65，都可以對上 app.js。對不上的句子就不該出現在指南裡。

這個站不是什麼

  • 不是醫療或體適能認證測驗。
  • 不是把百科或新聞 RSS 改寫一遍的內容站。
  • 不是必須開鏡頭才能用的產品——鍵盤 6／7 是正式模式。
  • 不是在遊戲畫面裡塞滿廣告的頁面。AdSense 放在文章／指南頁，與遊戲操作區分開，符合遊戲頁至少保持距離的政策。

Contact the author

Steve Yeh · Independent developer of 67game.store. For bugs, privacy requests, leaderboard removal, or partnership questions, use the Contact page (it opens a GitHub issue with your text — it does not fake a “sent” state). GitHub: stevehelloworld.