by James Eatock: http://bustatoons.blogspot.com/2010/08/rio-blast-explained.html

Colonel Blast, a villain that appeared in the She-Ra season one episode "The Wizard" was clearly inspired by the Masters of the Universe action figure Rio-Blast. But many often ask why Rio-Blast, who was a Heroic Warrior in the toyline, became Colonel Blast, a member of the Evil Horde. The fact is much like Acrobad, Rio-Blast was still a character in development when Mattel gave the concept artwork to Filmation. Filmation were informed that the gun-toting character was evil and turned the concept illustration into a character who was a member of the Evil Horde.