This is a very easy both can also be very stressful alternative defenders game, it each level provides four kinds of difficulty to choose from, your goal is to control the blue cells continue to kill invading red virus. The game offers a wide variety of equipment, such as sharp corners, laser transmitters, artillery, etc. These equipment can be loaded into the cell body, cells after armed combat will greatly enhance and destroy the enemy can get DNA points to upgrade your equipment. Gameplay is not complicated, just need to move to, but be careful to avoid enemy bullets fired Oh!