Tap on the display to fire a colored ball at the viruses. Match the color of your ball with the virus to eliminate it. Avoid hitting viruses with a wrong color, as it will reduce your score. Link consecutive hits to earn combo bonuses. Be mindful of the increasing speed of viruses as you advance through the levels. Use special items to remove multiple viruses at once. Focus for the highest score by strategically planning your shots. Train to enhance your accuracy and speed.