How to Play?

Best Free Parasite Bacteria Game. Parasite Bacteria is a great shooting game. Shoot the bacteria to heal the pool. Purpose of the game: in this game your pool has been infested with bacteria. You have to shoot the bacteria to clean it. Each parasite you shoot down earns you extra points. Collect bonus pills to gain power-ups. How to play: Use your left and right arrow keys to rotate and up and down arrow keys to move around. Use the spacebar to shoot. Special Tricks: On the top right corner of your screen is a radar, use it to predict the enemy's position.