Game controls: Player 1: (Arrows) - Move gems (N/M) - Rotate gems left or right Player 2: (WASD) - Move gems (Z/X) - Rotate gems left or right Put 4 similar gems together to make them explode. If a group of 4 is made after the gems above have dropped, that group will explode as well, resulting in a combo. Exploding gems sends voids to the other player. Combos send more voids. If voids are on your field, clear those voids by exploding gems next to voids. You can negate voids your opponent sends you by sending your own voids. If your board tops out, you lose!