User blog comment:Matt Hadick/Ultimate Robot Battle/@comment-4738647-20130612000607/@comment-99.125.190.127-20130615053255

Grendizer is not a Mazinger incarnation. Mazinger is the product of Dr. Kabuto. Grendizer came from the planet Fleed. Its only conection to Mazinger is a non-cannon movie and Koji Kabuto being in the show as a back up pilot. Why does everyone think that? I'm american for peats sake.