The righteous killer John accepted the order from Shangfeng today to sneak into the world's largest gang organization and rescue the kidnapped female doctor Natasha. And destroy the entire gang. John set off without hesitation. Destroy the armed organizations and a group that came after them along the way. Seeing to reach the inside of the gang, an unexpected thing happened... Mr Bullet Revenge, hypercasual shooter, revenge game, gangster game, rescue mission, shooting game, limited bullets, strategic shooting, unlock levels, criminal underworld, action game, mobile game, casual game, gun, shoot, shooter, shooting