An IFO (Intelligent Flying Object) is a humanoid mechanical combat unit, or mecha, specializing in combat against the Secrets in the world of Eureka Seven: AO. Most of the world's IFO's are in the possession of Generation Bleu, an orginization with several international alliances, who combat Secrets around the world. IFOs are powered by trapar, and have both a humanoid form, and a vehicular form, akin to an aircraft, for increased aerodynamics and movement speed. IFO's possess extremely high-caliber and destructive weapons of various design, including but not limited to, high powered machine guns, electric melee gauntlets, rockets, and extreme strength for being in the 21st century. While the IFO's of Pied Piper have IFO's of varying overall design, this is shown to not always be the case,