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AI · Summary
Click when the colour changes to measure attention and alertness.
Play
A simple reaction test. Wait for the colour change, then click as quickly as you can.
Press Start, then click when the box turns green.
This game stores your best time locally in your browser.
Progress is stored locally in your browser.
Support
If these notes or games help you, a small donation keeps the site independent and well tested.
Optional. This helps improve accuracy and usefulness. No accounts required.
