Test your speed and focus by tapping numbers or letters in order on a grid. Select your preferred grid size and mode—numbers (1→2→3…) or letters (A→B→C…). Once the timer starts, tap the tiles in sequence. Correct selections turn green and lock, while mistakes flash red. The timer stops when you tap the final tile, showing your completion time. Aim to beat your personal best with each attempt. This game sharpens concentration, visual scanning, and mental agility, making it an excellent brain exercise. Play regularly to enhance your speed and focus. Accept the challenge and see how fast you can go!