Sigma (シグマ Shiguma) is the primary antagonist of the Mega Man X series. Once the commander of the Maverick Hunters, Sigma fell into insanity and turned Maverick himself, becoming the leader of all haywire Reploids in waging war on humanity.

Sigma (Japanese: シグマ, Hepburn: Shiguma) is a fictional character and the main antagonist of the Mega Man X video game series. Created by Dr. Cain, Sigma was considered the finest of the Reploids and was the first leader of the Maverick Hunters, peacekeeping androids who defend humans against their renegade counterparts.

Sigma is the final boss from Mega Man X. He is fought immediately after X defeats Velguarder in Sigma Stage 4. Sigma is quite fast and powerful on the ground, and can block X's attacks if he is standing still.

Sigma is the final boss of Mega Man X4. While the Maverick Hunters and the Repliforce were busy fighting each other, Sigma took control of the Final Weapon and planned to use it on Earth, forcing X or Zero and the General to stop fighting in order to …

Sigma (in Japanese: シグマ, Shiguma) is the main antagonist of the Mega Man X series. He was the once the Reploid leader of the heroic Maverick Hunters.

Sigma (シグマ, Shiguma?) is a character and main antagonist of the Mega Man X series. He serves as the final boss in all games in the series except Mega Man X: Command Mission (where he makes no appearances) and Mega Man X8 (appearing as the final boss if the game is played on easy, and as the...

Sigma (シグマ) is a major character and antagonist in the X era, serving as the final boss of most Mega Man X games. He is a highly-advanced Reploid who was originally built by Dr. Cain to lead the Maverick Hunters, but he developed a hatred for …

Sigma is the main antagonist in the Mega Man X series. In the year 20XX, the brilliant scientist known as Doctor Thomas Light was nearing the end of his life.

Sigma (シグマ, Shiguma?) is the main antagonist of the Mega Man X video game series. Created by Dr. Cain, Sigma was considered the finest of the Reploids and was the first leader of the Maverick Hunters, peacekeeping androids who defend humans against their …

Sigma is the main antagonist of the 2005 action-platform game Mega Man Maverick Hunter X, a remake of the original Mega Man X. In Maverick Hunter X's continuity, Sigma reprises his role as the main villain and his new backstory is told in The Day of Sigma short.