In the vibrant world of this puzzle game, your mission is clear: eliminate all the viruses using color-coordinated capsules. The game board is bustling with viruses in three distinct hues—red, yellow, and blue. As a player, you have the power to guide each falling capsule, sliding it left or right and rotating it to align perfectly with the viruses and any capsules already in play. The magic happens when you manage to line up four or more capsule segments or viruses of the same color, either horizontally or vertically. Once aligned, they vanish from the board, propelling you closer to your goal of clearing the level by eradicating all viruses.

Be mindful, though; the game ends if capsules pile up and block the narrow neck of the bottle. You have the freedom to choose your starting challenge each time you embark on a new game. With difficulty levels ranging from zero to twenty, your choice directly influences the number of viruses you'll need to clear. Additionally, you can tweak the game speed among three settings, which affects how swiftly capsules descend into the bottle. Your score is determined exclusively by the number of viruses you eliminate, not by the speed at which you complete the level or the capsules you use.

Conquer the highest difficulty level, and you're not done yet—you can keep playing to boost your score, though the virus count stays constant. Bonus points are up for grabs when you wipe out multiple viruses in one fell swoop. However, triggering chain reactions, where one clearance sparks another, won't earn you extra points. Remember, the game speed plays a crucial role in scoring; faster speeds mean higher points. So, strategize, align, and clear your way to victory!