In the year 200X, just a year after the chaotic Gamma Project and Dr. Wily's supposed downfall, a new threat emerges. Dr. Light receives a letter from Dr. Cossack, a mysterious scientist from Russia, who claims to be the world's greatest robot engineer. To prove his point, Cossack plans to unleash his army of robots as a challenge to Dr. Light. With peace once again at risk, Mega Man is called back from his search for the elusive Wily to take on Cossack's formidable Robot Masters. Luckily, this time Mega Man is equipped with a powerful upgrade: the Mega Buster, which lets him charge up and fire devastating plasma shots. Get ready for an epic showdown as Mega Man fights to save the world once more!