jet jaguar
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A giant robot from Godzilla series. First appeared in Godzilla vs. Megalon
Jet Jaguar was initially built as a human-sized robot, but after being kidnapped by the Sepia people, Jet Jaguar (somehow) became self-aware and gained an ability to dramatically increase his size, to which he used this new ability to fight any hostile kaiju and protect humanity.
Jet Jaguar's characteristic, particularly its color scheme, is a rather obvious spoof to the rival Ultra Series.