Which arrow should I answer?
Always answer the highlighted center arrow. The other four arrows are distractors and may point the same way or the opposite way.
Are the standard trials balanced?
Yes. The 20-trial task has five congruent-left, five congruent-right, five incongruent-left, and five incongruent-right trials, shuffled each run.
Does a wrong answer end standard mode?
No. A wrong answer counts toward your accuracy and immediately advances the task. Standard mode always finishes after exactly 20 answers.
How does endless mode work?
Each correct answer adds one to your streak and starts a new trial with a shorter deadline. A wrong answer or timeout ends the run.
Can I play on mobile and desktop?
Yes. Desktop players can use arrow keys or A and D. On phones and tablets, use the two large labeled touch buttons.
Is this a medical or attention test?
No. This is a recreational browser game and cannot diagnose attention, neurological, or other health conditions.