Get injected into the microscopic world of BioGun. Face viral threats and winding corridors on your mission to save man’s best friend from the inside. Will you save dog-kind from extinction?
You take on the role of Bek, an experimental vaccine tasked with navigating the microscopic world inside a dog's body to defeat the Dooper Virus and save the canine species. The core gameplay loop involves using a variety of ranged weapons to combat enemies, while also platforming through the interconnected environments to find upgrades, collectibles, and progress the story. You have access to a quick dash move that can be used to evade attacks, as well as the ability to aim your weapons independently of your character's movement.
The game offers a diverse selection of ranged weapons, including a machine gun, sniper rifle, shotgun, grenade launcher, and more. Each weapon has unique characteristics in terms of damage, fire rate, range, and special effects. You can also find and equip "Nano-Chips" that provide passive upgrades and modify how the weapons function, allowing for further customization of your playstyle.
The game's environments are themed after the various organs and systems within the dog's body, each with their own unique visual styles and environmental hazards. Progression involves navigating these interconnected areas, uncovering shortcuts and secrets, and finding upgrades that grant access to previously inaccessible regions. Key to this is the ability to acquire different "enzymes" that allow you to bypass obstacles blocking your path. The map system is well-designed, allowing you to track your progress and highlight areas that require revisiting, though some reviewers note that it can be overly revealing at times.
Tackling the game's diverse roster of boss encounters puts your weapon and platforming skills to the test. These bosses, inspired by real-world diseases and infections, feature complex attack patterns that you must avoid while strategically using your arsenal to defeat each foe. Overcoming these challenges provides a strong sense of accomplishment and drives you to continue exploring the game's world.