The game is a single-player combat roguelike in which you play the role of a doctor who chooses various medical records to treat, and then controls various human immune guards, equipped with a variety of core weapons to enter various areas of the human body to fight against a variety of pathogens. Each core weapon comes with its own core burst skill, which. Along the way, the player gains a variety of abilities to improve or enhance their stats by leveling up or unlocking items to kill germs.
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