The story of Mega Man X4 takes place in a futuristic world where humans and robots coexist. The player controls Mega Man X, a robot designed to fight against evil forces that threaten humanity's existence. The game's plot revolves around an ancient evil known as Sigma, who seeks to destroy the fragile peace between humans and robots.
The gameplay of Mega Man X4 is fast-paced and action-packed. Players must navigate through levels, fighting against hordes of enemy robots while collecting power-ups and upgrading Mega Man's abilities. The game features a variety of armaments and equipment that can be used to defeat enemies and overcome challenges.
Mega Man X4 was released on the PlayStation console in August 1997 for Europe and September 1997 for North America, marking the fourth installment in the Mega Man X series. The game received positive reviews upon its release, with praise for its engaging gameplay and impressive graphics.