You may be thinking of Ultraman Zearth. Jet Jaguar isn't a benevolent alien energy being, he's an unexpectedly powerful android constructed by a crazy guy in a garage, and, as such, is more closely related to the Red Tornado than the Ultras. :)

Also, I give you Medic Jet Jaguar, possibly the greatest wacky idea that ever came out of the minds at Toho.

--G.
-><-
Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
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Ceterum censeo Carthaginem esse delendam.