Mattel had previously tried to market Popy's figures as Shogun Warriors in the late 1970s, before the line was cancelled, partially due to safety concerns.
Popy selected ten of their most popular Deluxe (short: DX) Chogokin figures for release in North America for 1982 - these typically varied between 10 and 12 inches in height in robot mode and came in large boxes with carrying handles on the sides.
Bandai America had no American facilities for manufacturing the figures, instead shipping the toys from Japan in styrofoam to their New Jersey-located US Headquarters where they were placed inside the new boxes.
The line would continue with infrequent releases for another couple of years, largely repackaging overstock from Japan, where the Super Robot market was suffering something of a decline.
While a commercial failure, the line introduced many collectors to high quality Japanese toys, and now good condition examples fetch large amounts on the second-hand market.