Mirror Grid is a logic puzzle where you tap cells on the left half of the board to turn them on or off, and each tap automatically mirrors to the right half. Your goal is to match all row and column clue circles, which show current/target counts (for example, 2/2); when a clue is correct, it turns green, and if you overfill it, it turns red. Keep adjusting the left side until every clue is green, then the level is solved, and you can choose Next Level