B Cell Defender

B Cell Defender is a retro-inspired immune-defense arcade shooter where your cell battles waves of invading pathogens. Built as a compact campaign, it is designed for quick sessions, replayable runs, and escalating challenges. Dodge toxins, destroy enemies, collect ATP, and upgrade your immune arsenal between waves. Each level introduces new pathogen behaviors, hazards, and boss patterns that test your reflexes, timing, and strategy. Face off against viruses, bacterial swarms, fungal colonies, replicating prions, parasites, immune decoys, and more as you fight through a campaign of escalating threats. Strengthen your defenses with upgraded antibodies, clonal burst shots, membrane shields, and various immune abilities. Every wave gives you a chance to adapt your build and prepare for the next challenge. Features: • Retro-inspired portrait arcade gameplay • 15-level compact campaign • Immune-themed enemies, hazards, and upgrades • Boss battles with unique attack patterns • Replayable action built for quick sessions • Multiple visual themes and retro screen filters Whether you want a quick run or a full campaign push, B Cell Defender delivers challenging retro arcade action with an immune-system twist.