Majini are fictional creatures featured in the Resident Evil video game series, particularly in Resident Evil 5. They are infected humans who have been transformed by the Las Plagas parasite, which takes control of their bodies and minds, turning them into aggressive enemies. These creatures are characterized by their zombie-like appearance and behavior, often attacking players in groups. Majini can wield weapons and exhibit varying levels of intelligence, making them more dangerous than typical zombies. Their presence adds to the horror and challenge of the game, contributing to the overall atmosphere of tension and survival.