In the vibrant world of this puzzle game, your mission is to eradicate all viruses using color-coordinated capsules. The game board teems with viruses in three distinct hues: red, yellow, and blue. As you play, you'll guide each falling capsule, maneuvering it left or right and rotating it to align perfectly with the viruses and any pre-existing capsules. Success comes when you manage to connect four or more capsule segments or viruses of the same color, either horizontally or vertically, causing them to vanish from the board. Your ultimate goal? Clear each level by wiping out every last virus from the playing field. Be warned, though: if capsules pile up and block the narrow neck of the bottle, it's game over.
You have the freedom to choose your starting difficulty whenever you embark on a new game. This difficulty setting, ranging from zero to twenty, dictates the initial number of viruses you'll need to eliminate. Additionally, you can opt for one of three speed settings, which control the descent rate of the capsules into the bottle. Your score is determined exclusively by the number of viruses you eliminate, not by how quickly you complete the level or how many capsules you use. If you conquer the toughest difficulty, the challenge doesn't end there—you can keep playing to boost your score, though the virus count stays constant. Bonus points are yours for taking out multiple viruses in a single move, but don't expect extra rewards for triggering chain reactions, where one elimination sets off another. Remember, the game's speed setting plays a crucial role in scoring; the faster the capsules fall, the higher your potential points.