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Parasite Steve

Parasite Steve is a game about infecting Steve with a virus. You play as the virus, and must work your way through each part of the body, destroying red blood cells. Watch out for the pesky white cells, which will attempt to heal infected cells at every turn, along with antibiotics which will focus on destroying the virus itself.

Each blood cell destroyed grants you DNA, which you can use to upgrade your virus. Successfully infecting 25% of the cells on a level will earn you a medal, which can be used to purchase the more valuable upgrades. 50% destruction earns you another medal, and 75% destruction gets you the 3rd medal for a level.

Can you defeat all the levels?