The Super X was a joint project of the Ground and Air Self-Defense Forces. Designated the Capital Defense Mobile Fortress T-1, it was a piloted VTOL craft constructed in secret to defend the Capital of Japan in case of emergency, in particular a nuclear attack. It was operated by a crew of six, armored with heat-resistant titanium alloy integrated with platinum circuitry, heavily armed with missiles, machine guns, and high-intensity lasers, and used three underside rotors for lift. The craft was thus well-suited to engage Godzilla in Shinjuku when the monster invaded Tokyo in 1984. Its magazine of missiles were fitted with cadmium warheads, which were temporarily able to control the nuclear reactions keeping Godzilla alive.
However, the detonation of a nuclear missile in the stratosphere above Tokyo results in a spectacular lightning storm that revives Godzilla. Godzilla and the Super X then have a final battle. Godzilla fires an atomic breath blast that erodes the warship's armor causing its rotors to fail, and it crash lands near the Sumitomo building. Godzilla then destroys the Super X by toppling the building on to it.
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