It's time to take on a new front. A microscopic one! Defend your cell from viruses, bacteria, and bacteriophages! Use your powerups to defeat them faster and get a higher score! Click to destroy viruses, some have special properties to challenge you. Press Esc to see the tutorial menu: Vesicles - Health Pack Enzyme Inhibitor - Slows down enemies Antibody - defeat enemies without clicking T-Cells - pushes back all enemies NEW: Vaccine - makes you invincible to an enemy type temporarily DNA Sequence - makes you invincible to all enemies temporarily Mitosis - Gives you extra lives Memory B Cell - More points Neutrophil - Progress to next wave instantly