Which clock positions match each direction?
12 o'clock is UP, 3 o'clock is RIGHT, 6 o'clock is DOWN, and 9 o'clock is LEFT.
Are the 20 standard trials balanced?
Yes. Standard mode has exactly five of each direction, shuffled for every run. Wrong answers and timeouts still advance the test.
How does endless mode get harder?
The response window starts at 2 seconds and shrinks toward 0.5 seconds as your streak grows. One wrong answer or timeout ends the run.
Why is the hand sometimes slightly off center?
A small angle wobble keeps the visual varied without changing the category. The hand always remains clearly closest to one cardinal clock mark.
Can I play on a phone?
Yes. Tap the four large direction buttons. Keyboard players can use Arrow keys or W, A, S, and D.
Is this a medical reaction test?
No. This is a recreational browser game and cannot diagnose a medical, visual, or neurological condition.