Arrows fall: press the arrow of the lowest one, by keyboard, click or tap. 10 levels of singles, streams, groups and crowds, 0.5× to 2.5×.
Press the arrow of the lowest falling arrow
About 5 minutes. Not medical advice. Stop if you feel dizzy, nauseous or strained.
Arrows fall from the top. Always answer the one closest to the bottom: press that arrow key (or W A S D), or click or tap the matching button at the bottom. A right answer clears it. 10 levels, from 10 arrows up to 30. Arrows come one by one, in fast streams, in tight groups and in crowds, each wave at its own speed, from 0.5× at level 1 up to 2.5× at level 10. Arrows never overtake: the one that dropped first always reaches the bottom first, and that is the one to answer. A wrong arrow is a mistake, and every arrow that reaches the bottom line is one mistake. 3 mistakes end the test.
This tests quick choice reactions under time pressure: finding the right item and pressing the matching key. A quick measure of how you did on this test today, on this device. Practice makes you better at the test itself; it is not a medical or IQ test.
Not medical advice. Stop if you feel dizzy, nauseous or strained.
Remember the gold balls, then follow them as they move. 7 levels: find 1 of 6 up to 6 of 12.
Click the numbers 1, 2, 3… in order before time runs out. 8 levels: 9 numbers up to 49.
Watch squares light up in order, then repeat it. Level 1: 3 × 3, 10 steps. Level 2: 4 × 4, 12 steps (unlocks after Level 1). A mistake restarts the level.