This gundam paper model is GN-000 0 Gundam (pronounced Oh-Gundam), is the first mobile suit to be equipped with a GN Drive in seasons 1-2 of Mobile Suit Gundam 00, the papercraft is created by Toyoppe, and shared by yenc.
The 0 Gundam is the original prototype MS that lead to the development of all current Gundams in Celestial Being. The unit was piloted by Ribbons Almark and later by Lasse Aeon.
The GN-000 0 Gundam was developed during the Solar Energy Wars 15 - 20 years prior to the revelation of Celestial Being (CB). The unit is the first prototype mobile suit (MS), created by Celestial Being's Krung Thep engineering team. Being the first generation Gundam, 0 Gundam is bleeding edge MS technology; it utilizes untested weapons and equipment as a testbed for future MS development. Although an experimental MS, 0 Gundam was the most advanced MS of its time.
For weapons and combat, 0 Gundam was built and equipped as a general-purpose MS; it is balanced for both short and long range combat with prototype GN weapons. It has the basic complements for most forms of combat: a Beam Saber, Beam Gun, and Gundam Shield. For long range combat, the unit would deploy its gun and shield for shoot-and-block tactics. For close range combat, a beam saber could be pulled directly from its backpack for shield-and-strike tactics. However, its full combat capabilities aren't fully understood due to limited information available.
With systems, 0 Gundam was the first unit to utilize the "Veda-based Operating System", an advanced network OS system that monitors and coordinates combat data with Veda to support its pilot(s) and ensure success during missions. However, due to the rogue actions of its former pilot, Ribbons Almark, taking over Veda, Celestial Being programmers replaced all their mobile suits with a less advanced, stand-alone system to prevent the enemy from further harming Celestial Being. Because of this, 0 Gundam's full combat potential is limited to its pilot without advanced tactical data coordination.
For stealth and maneuverability, 0 Gundam had an experimental GN Drive system: GN Feathers. It produced excessive GN Particles and when large amounts of these particles are released, an angelic wing-like effect appears. The system can be created and manipulated through the control of the Clavicle Antenna. The GN Feathers provides stability to the unit in mid-air while disrupting and jamming enemy radar. When combined with 0 Gundam's overwhelming power, it can create a powerful psychological effect on those who witness it. However, the wing's enormous output was considered to be too inefficient and was eventually removed due to new GN advancements in particle control; it was never used in the development of later generation Gundam units.
Like all GN Drives, 0 Gundam contained the Trans-Am System to release all of its GN Particles for temporary advanced MS combat. However, this system feature remained locked until the events of 2308 AD, when the Aeolia Schenberg died and triggered the system trap to unlock it. Although given the ability by then, the unit was too antiquated for actual combat and remained benched. Its drive was later removed by engineers for testing alternative systems, never giving 0 Gundam the chance to bring out its full potential.
When the 0 Gundam was transferred to Fereshte, CB engineer Sherilyn Hyde developed a combat system upgrade for the suit in case it was needed again. It was through this project that the GN-000FA Full-Armor 0 Gundam, a heavily armored assault version of 0 Gundam, was created but it was never deployed. After the completion of the GN-0000 00 Gundam, the 0 Gundam's GN Drive was removed and fitted onto the 00 Gundam in order to test the Twin Drive System. The GN drive subsequently remained in the 00 Gundam. 0 Gundam was stored within one of its resource satellites; during AD 2311, CB engineers revisited 0 Gundam and decided to give the unit an overhaul on its outdated systems. In AD 2312, the overwhelming power of Innovators caused the Full Armor equipment to be considered once again. However, as 0 Gundam no longer has a GN Drive, it couldn't support the particle demands and only its basic form was utilized.
To replace its missing GN Drive, 0 Gundam was fitted with a GN Particle Storage Tank. A new color scheme (red, blue and yellow) was also applied to the suit and the CB engineers renamed it as: 0 Gundam A.C.D. (Actual Combat Deployment), to differentiate it from its original form. After the unit was depleted of its particles while defending the CBS-74 Ptolemaios 2, it was abandoned by Gundam Meister Lasse Aeon. However, the unit was later found adrift by its original pilot, Ribbons Almark. Having just stolen an original GN Drive (ripped from 00 Gundam, originally from Exia), Ribbons had the technical expertise to retrofit the GN Drive for its final combat mission under Innovators control. 0 Gundam A.C.D was equipped with the original armaments (shield, beam saber, and beam gun) for combat.
As the progenitor unit of all GN mobile suits, 0 Gundam's data and technology would be used to develop more advanced Gundams for CB. However, unknown to CB, its data was stolen in the past by Ribbons and the Corner Family, who later used it to create the GNW-Throne series. Overall, 0 Gundam's technology paved the way in GN Mobile Suit development but also revealed many unintended consequences. [Source: wikia]
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