While you run you have to think quickly and avoid the hordes of viruses that are coming towards you.
Viruses mutate by having different behavior in their movements, which makes you think faster.
The speed of the game increases each time you complete a cycle of all its mutations.
Force fields prevent viruses from consuming you upon contact.
Every 20 meters you advance, you are given the opportunity to have a force field.
The police are not as fast as viruses, but they have crazy movements.
Enjoy it!