The game Secret team of our yard - Biosecurity dangerous virus has resurfaced and now affects every living being. Scientists decided to destroy the virus inside and figure out how to implement it in person, reduced to the smallest size. In your arsenal will be a suit and a powerful gun with an antidote. Try to cope with the terrible invasion of the virus, with each wave of cells will be more and more, and your weapon will have to mutate and shoot more powerful projectiles.