Technology & Combat Characteristics
One of the "GNZ Series" mobile suits created by the Innovades (that called themselves Innovators), the Gaga is unlike the other units in the series as it was developed as a "Decisive Battle Weapon" and produced in large numbers. The Gaga's primary means of attack is a suicide charge in which it launched itself at high-speed using the acceleration power of the Trans-Am System and then crashed into the enemy unit, or self-destruct at point-blank.
The Gaga is also labelled as a "Suicide Weapon" due to its attack method, and it can equip an optional booster unit to enhance its acceleration speed. Befitting its use, the Gagas were piloted by mass-produced, disposable, Innovades. A GN Drive Tau is located in the center of the mobile suit's chest. Unlike the other GN Drive Tau-equipped mobile suits with Trans-Am System, the Gaga is deemed worthless after using the system. It is possible for the Gaga to launch a suicide charge without using Trans-Am, and the mobile suit can also attack enemies with a pair of low-powered GN Vulcans mounted in its chest. These arms are also used for walking in place of the omitted legs. As the Gaga is not equipped with twin eye cameras like the Gadessa, the line sensor functions as its eyes. After the Innovators' defeat, the Earth Sphere Federation Forces (ESF Forces) seized the remaining Gagas that were functional, and in 2314, these machines were modified into the GNZ-004/BW Gaga Cannons to battle the alien lifeform known as "Extraterrestial Living-metal Shape-shifter". Additionally, several GNZ series machines, including the Gaga, served as the basis for the Celestial Being's CB-002 Raphael Gundam, while the ESF Forces utilized their technologies in the GNMA-Y0002V Gadelaza.
History
In the final battle, the Innovators deployed numerous Gagas from their base of operation, the colony-class deep space mothership Celestial Being, after the large ship's particle guns proved insufficient against the CBS-74 Ptolemaios 2 and its Gundams. Equipped with booster unit, the Gagas activated their Trans-Am System soon after launch and charged straight at the Ptolemaios 2. While a number of Gagas were intercept by the Gundams and Ptolemaios 2's weapons, there were just too many of them.
The Gagas that were not intercepted forced their way through the Ptolemaios 2's GN Field and crashed into the ship. The CBS Lab Transport tried to act as a shield for the Ptolemaios 2, but it did not last long against the hordes of Gagas. Eventually, with aid from the Katharon forces and the ESF Forces' Coup faction, the Gundams and Ptolemaios 2 pushed back the Gagas long enough for the ship to activate its Trans-Am and head for Celestial Being's warship docking bays. However, the intervention by the Katharon forces and ESF Forces' Coup faction also caused their ships and mobile suits to become targets for the Gagas' suicidal attack.
Even after the Ptolemaios 2 landed in one of the warship docking bays, the Gagas did not give up on their attack. These Gagas were intercepted by the ship's weapons, the GN-007GNHW/M Arios Gundam GNHW/M, the GNR-101A GN Archer, and the GN-000 0 Gundam (Type A.C.D). Several Gagas managed to enter the docking bay, but they were destroyed before they could hit the ship. However, the GN Archer soon ran low on energy, and a Gaga that broke through the defensive fire crashed into it.
Elsewhere, three Gagas targeted the GN-0000+GNR-010 00 Raiser that was battling the Innovators' GNMA-0001V Regnant. They did not stop even when the 00 Raiser was caught in a tight embrace by the Regnant. While two of the Gagas were destroyed by the GN Micro Missiles fired from the trapped 00 Raiser, the last unit continued on its course and crashed into the Regnant. The 00 Raiser survived with little to no damage, but the Regnant was disabled by the suicidal attack.
Back at the docking bay, the Gagas fired their GN Vulcans and landed several hits on the Arios Gundam GNHW/M. Another Gaga then broke through and crashed into the damaged GN Archer, further damaging the mobile suit. To protect the GN Archer, the Arios Gundam GNHW/M activated Trans-Am and quickly shot down a vast number of Gagas with its GN Submachine Guns.
The terror of the Gagas was put to an end when the Gundam Meister, Tieria Erde, regained his link to the quantum processing system, Veda, and activated the Trial System installed in his GN-009 Seraphim Gundam. This system seized control of all mobile suits linked to Veda, such as the Gagas, within its effective range and shuts them down. The Gagas were then left drifting in space around Celestial Being.
Following the Innovators' defeat, the Earth Sphere Federation Forces took control of the 100+ leftover Gagas found in the factory within the Celestial Being deep space mothership. In 2314, these Gagas were modified into the GNZ-004/BW Gaga Cannons to combat the alien lifeform known as "Extraterrestial Living-metal Shape-shifter".