In the vibrant world of this puzzle game, your mission is to eradicate viruses using color-coordinated capsules. The game board hosts viruses in three distinct colors: red, yellow, and blue. As a player, you control the descent of each capsule, maneuvering it left or right and rotating it to align with viruses and any capsules already in the field. The key to progress is to connect four or more capsule segments or viruses of the same color either horizontally or vertically, which results in their removal from the game. Your ultimate goal is to clear all viruses from the board to advance through levels. Be cautious, as the game ends if capsules stack up and block the narrow neck of the bottle.

You have the flexibility to choose your starting difficulty each time you initiate a new game. This difficulty ranges from zero to twenty and dictates the initial number of viruses you need to eliminate. Additionally, you can adjust the game speed among three options, which influences the rate at which capsules fall into the bottle. Your score is calculated based exclusively on the number of viruses you clear, with no consideration for the time spent or the capsules used. Successfully completing the highest difficulty level allows you to continue playing to boost your score, though the number of viruses to be cleared remains constant. You earn bonus points for clearing multiple viruses simultaneously, but there are no extra points for triggering chain reactions, where the elimination of one group leads to another. Remember, the game speed impacts your score as well; faster speeds earn you more points.