
They are bright yellow in color, and while they do not deal much damage on their own, they benefit from a high firing rate. X's body also possesses an energy amplifier that allows him to stockpile energy in his body, before releasing it all from his X-Buster at once as a more powerful Charge Shot. X can equip other busters and even new versions of the X-Buster, the X-Buster MKII and X-Buster MKIII.

Its attack is named Buster Shot, and his Action Trigger is a Charge Shot.

In Mega Man X: Command Mission, the X-Buster was redesigned alongside X's New Armor, and it is his starting weapon. In The Day of Σ, it's shown that X can detach his buster from his forearm at will. The X-Buster also has a Variable Weapon System that allows X to use the Special Weapons of Reploids he defeats, and it can also be powered up with different Armor Parts and Power-Up Parts. X can transform either of his arms into this powerful buster to shoot bullets of compressed solar energy.

The X-Buster is a Mega Buster Mark 17 created by Dr.
