Flash Grid — Spatial Memory Game

Flash Grid

25 cells. One flashes green.
Tap it as fast as you can.
Miss it or tap wrong — lose points.

Speed

Normal

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How to Play

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1. Watch the 5×5 grid — one cell will flash green at a random position.

2. Tap it as fast as possible. Your reaction time in milliseconds appears right on the cell.

3. Let the window expire (miss) or tap the wrong cell and you lose 5 pts. Misses also reset your streak.

4. The grid speeds up as your score climbs — watch the Speed bar at the top of the grid.

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Expert Tips

Soft focus: Keep your gaze relaxed near the center of the grid so any cell lighting up hits your peripheral vision first.

Move first, confirm second: Start moving your finger toward the flash the instant you spot it — don't wait to fully confirm before acting.

Streaks pay: Every 5 consecutive hits adds a +2 bonus per tap on top of the base score. Consistency beats raw speed at high scores.