Scroll Direction Challenge
React to alternating UP and DOWN scroll instructions.
Play Scroll Direction Challenge
Scroll in the requested direction for ten rounds.
How to use Scroll Direction Challenge
Scroll in the requested direction for ten rounds. All gameplay and calculations run in the browser; there is no mandatory account, game API or score upload.
What this challenge measures
Correct wheel-direction events out of ten. This result describes performance in this specific exercise; it should not be interpreted as a population ranking.
How to improve with practice
Repeat attempts under similar conditions, compare with your own recent sessions, and favor consistent accuracy over isolated personal records. For fair comparisons keep the same browser, input method and device when possible.
Accuracy and limitations
Touch scrolling and native browser direction may differ. Paused tabs, varying display refresh rates and browser scheduling can also affect time-sensitive exercises. Browser-local history can be cleared by the visitor at any time.
Frequently asked questions
Is Scroll Direction Challenge free?
Yes. You can use it without signing in or paying.
How do I use Scroll Direction Challenge?
Scroll in the requested direction for ten rounds.
What does Scroll Direction Challenge report?
Correct wheel-direction events out of ten.
Are scores scientifically or medically certified?
No. Touch scrolling and native browser direction may differ.