Planet Pair is a memory game with pairs of planets. Each round has 3 phases of increasing difficulty: 3 pairs in the first, 6 pairs in the second, and 9 pairs in the final phase. The pairs and their positions are randomized in each phase, ensuring unique gameplay and high replay value. A timer challenges you to complete each round faster. Planet Pair, memory game, HTML5 game, puzzle game, planet matching, memory challenge, online game, free game, educational game, brain training, card game, HTML, HTML5, puzzle, brain games, game, planets, challenging, replayable, timer, memory skills, fun, kids, adults