There are Giant Chinese Knock-offs of the 200x toys, And some look quite nice. I think they're mostly used as fodder for people customising 200X MOTUC Toys, as we'll never get them from Mattel.
Tallestblue is correct. The 200X KOs are massive in comparison to the original stuff. They are pretty impressive with only paint apps being a problem but there is no way you can confuse these guys for the real thing.