"Mighty Cell: Tiny Heroes" is a tower defense game that emphasizes cooperation and competition among players. Players take on the role of a tiny guardian of the body, accompanied by pets with special skills, to construct various defense lines against viruses, parasites, and negative emotions invading the human body.

Featuring diverse tower defense modes ranging from synthesis-based fixed route defenses to room-based defenses and even asymmetric gameplay similar to "Identity V" and a combination of "Among Us" style deception gameplay with tower defense. The game aims to showcase creative gameplay for player enjoyment.

Players can engage in interactive gameplay similar to "Among Us," where friends gather in a game room to decide the game's progression through language and voting. Additionally, the game offers asymmetric gameplay allowing players not only to build defenses but also to play as monsters challenging other players' defenses, testing strategic prowess.