The unimaginatively named Robot-Man X is yet another reissue of the Jumpstarter Topspin (from '85, posted on Day 38 of 2017), who resurfaced in South America as Salt-Man X in 1985 ( posted on Day 14 of this year). This incarnation was unique to Argentina, is a Decepticon (at least, according to the symbol on his cardback) and was released in 1994. Like all other versions of this mold, he has a spring-loaded transformation that pops him from a winged vehicle of some sort into a standing robot.
An Online Amateur Sketchpad