Rolling Iron Man
[Repost because at least on my end i got stuck in an endless webpage loop, I don't know what happened.]
Voltra_Neo pointed out it was difficult to roll an Iron Man. It's definitely impossible to use straight shooting or hand launchers, I've had zero success. However, if you grip Iron Man right above the plastic flap on his bottom half, gently but firm, and give a pretty strong release, I've had multiple successful stands with Iron Man. The stronger the force of the launch, then the more drag he'll have, seen in that third shot (the one done from two card lengths away) he spun right over the cores and dragged the haos one with him before standing.
I'm using a fabric matt and bakucores, which are lighter than gate cards. I hope this helped, and do you have any more hard to roll gans to suggest? Maybe I can help with that!