How to play:

• Tap any node to raise its charge (0 → 1 → 2 → 3 → 0).
• Form a full row or column where all nodes:
  · are non-zero, and
  · share the same charge level.
• Those lines sync, refresh, and boost your score.
• Chain syncs in consecutive moves to grow your combo multiplier and earn extra time.

Run ends when the timer hits zero. Try to climb your own high score.