Dot Square Game

A simple browser game: spot when four adjacent dots form a 2×2 square and press Space as fast as you can.

How to play

1. Click Start (optionally change dot duration and spawn interval).
2. A 6×10 grid of dots appears and disappears at random.
3. When four adjacent dots form a square (2×2 block), press Space.
4. Correct press: +100 points, reaction time shown; wrong press: -25 points.
5. Score, high score, and best reaction time are shown at the top.