VISUAL SPEED · 24 ROUNDS
Watch two dots cover equal tracks and choose which one moved faster.
Play 24 rounds with exactly 12 LEFT and 12 RIGHT answers. Mistakes count, then play continues.
READY?
Both racers start together and travel the same distance.
BOTH DOTS START TOGETHER
Keyboard: A or ← chooses LEFT · L or → chooses RIGHT · Touch or mouse: use the two large buttons.
HOW TO PLAY
Watch the LEFT and RIGHT pixel dots start at the same moment on equal-length tracks.
Both dots reach the same finish line. Notice which one completes the distance first.
After the movement ends, choose LEFT or RIGHT before the answer bar empties.
MOTION COMPARISON
Each round asks you to compare two simultaneous movements that share a start time and travel distance. Only their speed differs.
Standard mode gradually reduces the speed gap across 24 rounds while keeping LEFT and RIGHT answers balanced.
ENTERTAINMENT CHALLENGE
This game is for entertainment and personal practice. It is not a clinical vision, neurological, or processing-speed test.
Display refresh rate, motion settings, device performance, and practice can change your result.
QUESTIONS
Yes. They begin together at matching start lines and move to matching finish lines. Only speed changes.
Yes. Standard mode contains exactly 12 LEFT-faster and 12 RIGHT-faster rounds in shuffled order.
The speed difference gradually shrinks. Endless mode also shortens the answer window after correct responses.
No. It is a recreational browser game and does not measure or diagnose a medical condition.