One flash. Two answers: center shape + edge spark.

Keep your eyes on the middle — your side vision catches the spark. You score only when BOTH answers are right — and shorter flashes are worth more points.

Your first watch finds your level: the flash shortens on purpose — hitting your ceiling IS the measurement. You can't fail a calibration.

🔓 Next unlock at Lv 12: Distractor ring — Grey decoys flash alongside the spark — pick the real one