After the appearance of a new Godzilla in 1999,
the JSDF began a program to convert the skeletal
remains of the first Godzilla into a battle cyborg.
The AC-3 "Shiragasi" would be the new
high tech aircraft designed to carry and deploy,
transmit energy to refuel, remotely control, and
provide extra fire support for Kiryu, the Mechagodzilla.
In 2003, when the JSDF was unveiling Kiryu, the
new Godzilla made landfall once more. Caught off
guard, the Shirasagis transported Kiryu to the
scene of battle in record time. Godzilla ceased
his advance the very moment he caught sight of
his metallic mirror image. As the jets hovered
in standby phase, Kiryu attacked its quarry. As
Kiryu was preparing to fire its ultimate weapon,
the Absolute Zero Cannon, Godzilla roared. Kiryu
malfunctioned and its chest mounted cryoweapon
refused to fire, allowing Godzilla to escape.
The Shirasagis attempted to rendezvous with the
cyborg, but Kiryu suddenly lashed out with one
of its wrist-mounted laser cannons. One of these
aerial support vehicles barely managed to escape.
Godzilla's roar had awoken the memories of the
first Godzilla, that chaotic entity of fifty years
prior. Making its way deeper into the city, Kiryu
destroyed everything in sight. One Shirasagi flew
around Kiryu in an attempt to lure it away from
the metropolis, only to be repelled by Kiryu's
mouth-mounted maser cannons. When the cyborg turned
its attention back to its errand of terror, one
of the pilots courageously (yet recklessly) attempted
to divert the cyborg's heat seeking missiles.
The berserk mechanical beast didn't even acknowledge
this act of heroism. Fortunately, the crew members
were rescued before their cutting edge vessel
erupted into a fiery explosion.
In the dead of night, Godzilla began an assault
on Tokyo. The order was hesitantly given to deploy
Kiryu once more, and the Shirasagis unleashed
their mecha in midflight, allowing it to body
slam Godzilla before the dreadful monster could
annihilate evacuating civilians. The battle between
monster and machine resumed and when it had appeared
as though Kiryu had gained the upper hand, it
readied its Absolute Zero Cannon once more. Godzilla,
proving his remarkable knack for escaping destruction
just in the nick of time, regained consciousness
at that very moment. A powerful atomic blast emanated
from the reptile's maw, causing Kiryu to topple
over and fire its weapon in a rogue direction,
accidentally demolishing several buildings. The
situation became very grim when Kiryu exhausted
its energy supply. Soon, the Anti-Mega Losses
Force ordered nearby power plants to divert all
energy to their headquarters. Tokyo experienced
a massive blackout. One of the Shirasagis transferred
power from home-base in an attempt to transmit
energy to Kiryu, while the others provided backup
for the Type 90 Maser Cannons. Kiryu rose, only
to be blasted by the might of the monster king.
When Godzilla's mechanical doppelganger rose once
more, one of the Shirasagi pilots witnessed a
horrific sight; Godzilla's dorsal plates began
to flicker and glow, a precursor to that insidious
death ray that could effectively end Kiryu's last-ditch
effort to charge and fire its Absolute Zero Cannon.
The copilot was ejected and the pilot fired at
Godzilla, turning the creature's attention to
the warplane instead. The aircraft's wing was
torn asunder by the searing hot plasma, and the
Shirasagi crashed directly into Godzilla's mouth!
Having fully charged, Kiryu ignited its rockets
and slammed into Godzilla. Kiryu grabbed the fighter's
remains and hurled them into the sky, allowing
the pilot to safely eject from the doomed vessel.
Grasping Godzilla's mouth, Kiryu and its fleshy
foe crashed into the ocean. A giant ice crystal
formed and shattered; the Absolute Zero Cannon
had fired. Alas, Godzilla was only injured. The
once unstoppable monster bid a hasty retreat as
Kiryu rose to the surface, its reserves exhausted.
Less then a year later, Godzilla began his assault
anew on Tokyo. Heading for Kiryu's home base,
enraged by mankind's affront to his forebearer's
remains, the nuclear leviathan was caught unaware
by an aging Mothra. The battle lasted long into
the night before the all clear was given to send
Kiryu into the fray. The battle raged on as Mothra's
larvae joined the battle. Eventually, Mothra passed
on and Kiryu was knocked out of commission. The
Shirasagis offered fire support to the twin Mothra
larvae while one of Kiryu's maintenance workers
attempted to complete the monumental task of bringing
the mighty hybrid of carbon and silicon back online.
Upon repair, Kiryu made its way to Godzilla and
delivered a critical blow with its drill hand
and Triple Hyper Maser Cannon, allowing the larvae
to encase the raging saurian in silk. When Kiryu
was ordered to deliver the finishing blow, it
refused. Godzilla's distress once again awoke
the 1954 Godzilla deep within Kiryu, and the mighty
machine began to transport Godzilla to the sea.
One of the Shirasagis followed in order to free
the trapped maintenance worker, and curiously,
the cyborg seemed to be aiding in the human rescue
all along. Using a computer monitor to bid its
final goodbyes, Kiryu crashed into the ocean with
Godzilla in tow, but not before the trapped human
was freed from the machine. The pilot of the Shirasagi
ejected to rescue him, and they parachuted safely
to the sea. Meanwhile, one of the remaining jets
arrived to transport them home. With Kiryu gone
and Godzilla defeated, the future of this fleet
of workhorse aircraft remained uncertain.