Humans coexist with intelligent androids called “Reploids”. Following the third defeat of the powerful, “Maverick” Reploid Sigma, a second Maverick Hunting group has arisen. The army, called the “Repliforce”, is a strict military regime led by the giant Reploid named General and his second-in-command, Colonel. Battle armies of Maverick Reploid Robots while mastering all-new strategic moves like the Air Hover and Zero’s Saber Tactic system. Discover a myriad of power-ups, secret rooms, extra weapons and invincible vehicles to take on 8 all new X-Hunter Bosses. Experience two different story lines and characters with their own sidekicks. If you play as X, your experience will be very similar to the other MEGA MAN X games, while if you choose Zero, the story is pretty much the same, but you have to change your approach in battles and traversing the terrain. Mega Man X4 now you can be a hero, or a Zero!