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How to Play
⚡ Reaction: Wait for the panel to turn green, then tap it (or press Space) as fast as you can. Tapping early counts as a false start.
⇄ Decision: When the panel turns green it shows an arrow. Press the matching ←/→ arrow key, or A/D. On touch devices, tap the matching left or right half of the panel instead. Wrong side or early input = fail.
Each round is 10 trials. Your average, best time, and consistency are tracked, and you can save sessions to compare progress over time.