Tap the numbers 1 → 25 in order as fast as you can. Trains concentration & reading speed.
Flip cards and find every matching pair in the fewest moves. Sharpens working memory.
Tap the ink color of the word, not what it says. Trains attention & impulse control.
Watch the pattern light up, then repeat it. Each round gets longer. Pure concentration.
Guided box breathing (4-4-4-4). Calms the mind and resets focus in a minute.