"There's one thing I can say for certain. Heroes really do exist. We've just seen one, and now he's coming home."

Mobius One was an enigmatic fighter pilot of the Independent State Allied Forces, who gained fame for his actions in the Usean Continental War. His flying skill was considered equal to that of an entire flight, and was the "poster ace" of the ISAF during the war.

Mobius One (メビウス・ワン Mebiusu Wan) is the main character of Ace Combat 04: Shattered Skies, and is arguably one of the most successful aces ever to take to the skies. He was a key figure in helping the Independent State Allied Forces (ISAF) achieve victory in the Usean Continental War, as well as in its efforts against the Free Erusea forces following the war. The total number of air victories achieved by Mobius One is one of the highest ever to be achieved by a single pilot. This is evident in his flawless track record, having never been shot down during a mission and having risen from the position of rookie to top ace in less than twelve months.

During his ISAF tour of duty, Mobius One flew various aircraft ranging from light interceptors to all-weather, multipurpose, ground attack, and even stealth-capable air superiority fighters. His signature aircraft was the ISAF blue-tinted F-22A Raptor, which remained his choice fighter following the end of the Usean Continental War.


Usean Continental War

On his first combat mission, Mobius One singlehandedly shot down six Tu-95 Bear bombers, making him an immediate ace, along with their fighter escorts at New Field Island. Thereafter, Mobius One continued to perform extraordinarily well in combat operations; in particular, he is credited with the destruction of the Erusean super-weapons Stonehenge and Megalith. He also is the first pilot to shoot down a member of the world renowned and feared Erusean ace fighter pilot unit known as Yellow Squadron, personally shooting down both Yellow 4 (when that squadron responded to his destruction of Stonehenge) and Yellow 13 (during the Siege of Farbanti). He was the involved in such operations as:

  • Operation Rough Seas: A strike role in the sinking of the "Invincible" Aegir Fleet.
  • Operation Countdown: One of the defending air superiority pilots of the launch of a key ISAF satellite during the largest air battle since Operation Battle-Axe of the Belkan War, believed to have involved over three hundred aircraft. He made some key achievements, shooting down an SR-71 Blackbird, E-767 AWACS, KC-10A Extender, 6 B-2A Spirit's, and hitting a member of the Yellow Squadron, possibly Yellow 13.
  • Operation Bunker Shot: A close air support role during an ISAF amphibious landing on the southern coast of the mainland, allowing them to begin to retake the continent.
  • Operation Stone Crusher: A major strike role in the destruction of the superweapon Stonehenge, a turning point in the war, and the death of Yellow 4. This event led to him gaining worldwide fame.
  • Operation Fire Fly: A pivotal ace during the eve of the emancipation of San Salvacion, and the destruction of much of the Yellow Squadron, except for Yellow 13, who's plane was damaged by Mobius 1.
  • Operation Autumn Thunder: A leading ISAF pilot at the siege and capture of the Erusean capital city Farbanti. The (probable but unconfirmed) death of Yellow 13 and the shooting down of several Eursian MV-22s carrying government VIPs.
  • Operation Judgment Day: A role which is responsible for the destruction of Megalith, the replacement for Stonehenge, and the end of the war. He and his squadron also took down the last of the Yellow Squadron in that battle.

Mobius One was a part of the 118th Tactical Fighter Wing throughout the entire war, but during Operation Judgment Day the entire squadron officially was renamed Mobius Squadron in honor of him in the squadron's last official mission.

Operation Katina

In 2006, he returned to Erusea to defeat the last of the Erusean extremists calling themselves "Free Erusea." Only Mobius One and AWACS Sky Eye were sent, but together they effectively crushed the resistance putting a halt to their operations; after the Usean Continental War statistics showed that Mobius One's combat ability rivaled that of an entire ISAF squadron.

During the last battle against free Erusea, Mobius One was engaged by four to six X-02 Wyverns. Despite the technologically more advanced Erusian fighters, he successfully managed to destroy them and afterwords returned to base safely. There are no records indicating what became of Mobius One after the end of the conflict.

Characteristics and personality

Nothing is known of Mobius One's identity, apart from his callsign and the nickname he earned late into the Usean Continental War. He is most likely male, given that SkyEye called him "he" or "him" repeatedly at the end of the game.

Appearances in other games

Mobius One's legacy has led to several cameo appearances and references in future Ace Combat titles.

  • Ace Combat 5: The original color livery of the F-22A is the SP paint of the OADF F-22. However, the engine nozzles lack their golden coloring.
  • Ace Combat Zero: The Mobius color is the "Soldier" scheme of the F-22A. In addition, Mobius One makes a physical appearance as the end boss of the special stage, The Gauntlet. The game files contain a .vut format file with the comment *Mebiusu 1_-_Megalith Alt, an allusion to the starting altitude of Megalith, 6666 feet.
  • Ace Combat 6: The Mobius livery is a download color for the F-22A, dubbed the "F-22A -MOBIUS-", which achieves high battle capability at the expense of losing all armor. In addition, a pilot called Mobius is referred to in background chatter in "Chandelier".
  • Ace Combat: Joint Assault: Mobius is one of the "legacy" enemies appearing in the special mission "Ace of Aces", being the 70th aircraft the player must face. He intially fights slowly, but later adopts the aggressive flight patterns of the Varcolac Squadron.
  • Ace Combat Infinity: In line with the various references to Shattered Skies' plot, Mobius' nickname of "The Grim Reaper" is adopted as the callsign of the player character, Reaper.


  • Mobius One and Yellow 13's paint schemes are found in most games of the series following AC04. Additionally, he makes a non-canonical appearance as an enemy ace on the Ace Combat Zero bonus mission, The Gauntlet. He only appears on the Ace difficulty and under the condition that the player shoots down Espada Squadron in under one minute.
  • There is a popular belief that Cipher is Mobius One; that he served in the Belkan War in 1995 and then returned to his native country of USEA to then join the ISAF in the Usean Continental War. Mobius One's appearance in "The Gauntlet" (see second note above) is not canon, so some came to believe that Cipher was fighting his future self, or as others have said, fighting his inner demons, since he shares the same flight patterns as Cipher. But, Mobius One is mentioned as a rookie pilot in the beginning missions of Ace Combat 04, and not having the legendary reputation or rank of Captain that Cipher did, so it is still a highly debated topic. It is possible, however, that Cipher may have covered up his previous life completely and created a new, unassuming identity. Deep within the Ace Combat Zero files, there is a .vut file (holded at the placement of the mission The Gauntlet) which contains a text note *Mebiusu 1_-_Megalith Alt, clear refference to Mobius 1 initial altitude on Ace Combat 4 final mission Megalith which curious enough is 6666 ft., a resemblance to the Devil's Number 666 leading to Galm 1 title The Demon Lord.
  • In AC:AH, his callsign and paint scheme are awarded to the player after being titled a "Hero" once in online multiplayer. (dealing the final blow to the enemy's HQ in Capital Conquest.)
  • According to the Ace Combat 4 official website, Mobius One's parents were killed during the opening stages of the Usean Continental War. This could mean that Mobius 1 originates from either the Republic of Amber or the Republic of Delarus, which experienced indiscriminate bombings against their cities by Erusian forces.
  • A wallpaper from the Ace Combat 4 official website shows an F-14A Tomcat with the number "118" (Mobius 1's number), indicating that Mobius 1 also canonically flew the F-14.
  • Mobius 1 was featured in Ace Combat: Joint Assault's mission, Ace of Aces, as an enemy ace, after shooting down the 69th aircraft.


Start a Discussion Discussions about Mobius 1

  • Mobius 1 Aircraft #

    5 messages
    • Thanks for the heads up. The 04 definitely refers to AC04, but what's important is that most appearances of the F-22 livery only shows 118...
    • No problem. Now I'm wondering if we should add that qualifier to every single Emmerian fighter pilot's page, or at least to Avalan...
  • Mobius One's military rank ?

    7 messages
    • DRosencraft is correct. Take the dialogue of Rendezvous: :Chopper: > :Grimm: > :Chopp...
    • SlyCooperFan1 well about military rank in pilot as commonly happen in real world was a colonel for the highest rank.And when became colonel me...
Community content is available under CC-BY-SA unless otherwise noted.