The VRzomOl is a VRFPS game that focuses on PVP network online biochemical battle mode, an improvement from the original CS's popular biochemical mode. The game features two modes: zombie escape and biochemical infection. In these modes, online players must play as either humans or zombies. Within a limited time frame, humans must either annihilate all zombies or save themselves, while zombies aim to infect all humans through an all-out attack. 1. Biochemical infection: Within a limited timeframe, humans must eliminate all zombies using firearms or evade them in order to prolong survival, while the zombies actively seek out humans to infect them. 2. Zombie escape: Within a restricted time frame, humans are required to fend off zombies with firearms for self-preservation and successfully reach the designated endpoint in order to achieve successful escape. The immediate infection of all human players by zombies results in victory.