Are there any different points between these two figures? I see pictures on ebay. But i can't tell apart. Or just the box and instruction?
I'd guess box, instructions, and probably subtle paint differences. Go with whatever's cheaper, unless you're a die-hard Hasbro or die-hard Takara fan. If you can't tell the difference, there probably isn't any major ones.
And the missiles. Can't forget the resculpted missiles. Other than that, no. I can't tell the difference between my Devil Gigs and Galvatron. EDIT: Oh wait. There's a couple missing paint apps on the legs of Galvatron, compared to Devil Gigs. And the red claws/feet on his forearms are missing a couple apps too.
the weapons are the only major difference...the japanese version has multiple points, while the american only has one point IIRC