Near the end of his life, Dr. Light succeeds in creating the first of a new series of robots which will change the world. Able to think and make decisions, this new robot holds great danger as well as great possibilities. Fearful of the possible consequences of unleashing his creation on the world, Dr. Light decides to seal him in a capsule and test his systems until they are totally reliable. The future will have to decide his fate...

Released from the capsule by Dr. Cain, "X" is born into the world of the future where the robot rebellions are a thing of the past. But when Dr. Cain tries to implement Dr. Light's designs into a new series of Reploids, something goes hideously wrong. Now the future lies on the brink of destruction and a new Mega Man must emerge to face Sigma and his forces before the human race is wiped from the planet!

It is the year 21XX. While trying to find a fossil record, Dr. Cain, a human scientist, has uncovered a capsule with a robot from the past: Mega Man X. The capsule contained a warning message from Dr. Light, his creator:

WARNING:

"X" IS THE FIRST OF A NEW GENERATION OF ROBOTS WHICH CONTAIN AN INNOVATIVE NEW FEATURE - THE ABILITY TO THINK, FEEL AND MAKE THEIR OWN DECISIONS. HOWEVER THIS ABILITY COULD BE VERY DANGEROUS. IF "X" WERE TO BREAK THE FIRST RULE OF ROBOTICS, "A ROBOT MUST NEVER HARM A HUMAN BEING", THE RESULTS WOULD BE DISASTROUS AND I FEAR THAT NO FORCE ON EARTH COULD STOP HIM.

APPROXIMATELY 30 YEARS WILL BE REQUIRED BEFORE WE CAN SAFELY CONFIRM HIS RELIABILITY. UNFORTUNATELY I WILL NOT LIVE TO SEE THAT DAY, NOR DO I HAVE ANYONE TO CARRY ON MY WORK. THEREFORE, I HAVE DECIDED TO SEAL HIM IN THIS CAPSULE, WHICH WILL TEST HIS INTERNAL SYSTEMS UNTIL HIS RELIABILITY HAS BEEN CONFIRMED. PLEASE DO NOT DISTURB THE CAPSULE UNTIL THAT TIME.

"X" POSSESSES GREAT RISKS AS WELL AS GREAT POSSIBILITIES. I CAN ONLY HOPE FOR THE BEST.

SEPTEMBER 18, 20XX

T.LIGHT

X's design interested Cain, and he analyzed Dr. Light's notes. Months later, Cain was able to create robots similar to X, called Reploids, and they began to be mass-produced around the world. For unknown reasons, some Reploids began to act strange and attacked humans, being labeled Mavericks. To counter any possible threat, the Maverick Hunters were formed. Sigma, an advanced Reploid, was assigned to be their leader. X also became a member of the Maverick Hunters. Time passes and the Maverick Hunters are able to keep peace, but one day Sigma himself became a Maverick, being joined by other Maverick Hunters to start a war against humanity. Although X was by nature a pacifist, he had to do something, so he joined the new leader of the Maverick Hunters, Zero, to stop the ambitions of Sigma and the Mavericks.