Gli-Eye

Gli-Eye (グライアイ) is a flying enemy from the Mega Man Zero series that are like one-eyed "descendants" (for lack of a better term) of the Bat Bones of the Mega Man X series. It appears hanging on the ceiling, and then flies in the direction of enemies that approach it. One Gli-Eye is used as a camera by Sage Harpuia in the Rockman Zero manga to spy on Zero. In the first game, Gli-Eye appears in Harpuia's stage and the Neo Arcadia Tower stage. In Mega Man Zero 2, it appears in Phoenix Magnion's stage and the final Neo Arcadia stage.

This robot has the colors of the usual Pantheons, so one could assume that it is a robot produced by the Neo Arcadia ruled by Copy X, since it wasn't after the Mega Man Zero 2 episode.