The Pixy is a mysterious, unmanned aircraft that appears throughout the game, often flying alongside the main enemy force. It's never directly engaged in combat and its purpose is unknown.
While some players believe they can shoot it down, there's no evidence to support this. The Pixy seems to be immune to damage and will simply disappear from sight after appearing on the screen.
Its presence in the game remains a mystery, adding to the intrigue and unanswered questions within Ace Combat Zero's narrative.