Mobius 1

Mobius One is the main player of Ace Combat 04: Shattered Skies, and is perhaps the greatest ace of his time, and even of all time. He was one of the key tools to success for the Independant State Allied Forces (ISAF) during the Usean Continental War.

In Ace Combat 04
On his first mission, Mobius One single handedly shot down six Tu-95 Bear bombers, along with their escorts at New Field Island. After that Mobius One continued to perform unbelievably well in combat operations afterwards. In particular, he is credited for the destruction of the Erusean superweapons 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 Four (when that squadron responded to his destruction of Stonehenge) and Yellow Thirteen (during the Siege of Farbanti). He was the key to such operations as:
 * Operation Rough Seas: the sinking of the "Invincible" Aegir Fleet.
 * Operation Countdown: 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 also made some key achievements, shooting down the SR-71 Blackbird, E-767, KC-10, 6 B-2 Spirits, and hitting a member of the Yellow Squadron, possibly Yellow 13.
 * Operation Bunker Shot: An ISAF amphibious landing on the southern coast of the mainland, allowing them to begin to retake the continent.
 * Operation Stone Crusher: 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: 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: The siege and capture of the Erusean capital city Farbanti. The death of Yellow 13.
 * Operation Judgment Day: The destruction of Megalith and the end of the war. He and the squadron also took down the last of the Yellow Squadron in that battle.

Mobius One was a part of the 118th Tactical Fighter Wing through out 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.

In 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 it was discovered 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 X-02 Wyverns. Despite this he managed to destroy them and returned to base safely.

Note that Mobius 1 was the first individual in Ace Combat Series that receives a nickname, "The Grim Reaper".

In Ace Combat Zero
He appears as the final ace that the player must shoot down in the mission "The Gauntlet" in Ace Combat Zero. If certain conditions are met, he will shoot down all of Wizard Squadron's YF-23 Black Widow II's and will face the player one-on-one. He can fire multiple missile barrages and can shoot missiles backwards, just like the Gelb Squadron. He is arguably the hardest enemy in the game, because to face him, you must be playing on "Ace" difficulty, where even just one missle is enough to shoot you down, and because Mobius One has literal insanely quick maneuvers, so even if you are playing with the ADF-01 "Falken," you're barely a match for his extraordinary skill.