Test your reflexes in milliseconds.
Click the panel to start. The screen turns red while you wait, then snaps green at a random moment — tap as fast as you can. Tap too early and you're penalized; tap on a yellow false-flash and the round resets. Best-ms is tracked per difficulty.
Three levels tune the wait window and bait frequency. Easy keeps it pure timing; Hard throws yellow false-flashes to test impulse control. The last 5 attempts roll into a live average so you can spot trends.
⚙️ Settings & Customization
- Theme
- Language
- Size
- Transparent background
- 🎨 Accent Color
Changes apply live — the embed link on the right and the preview above update instantly.
📖 How to embed in Notion
- Pick your difficulty and theme above, then copy the embed link from the sidebar.
- Open the Notion page you want the widget on and type
/embed. - Paste the link into the embed dialog and press
Embed link. - Drag the embed's bottom edge to resize it to taste.
🆕 What's new in v1.1
- ✦ 21 languages with RTL for Arabic & Hebrew
- ✦ Three difficulty levels with tuned wait windows
- ✦ Yellow false-flash bait on Medium & Hard for impulse training
- ✦ Best-ms persisted per difficulty in localStorage
- ✦ Rolling 5-attempt average to spot trends
- ✦ Sub-millisecond timing via performance.now()
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