Marvel Super-Heroes with Step Dice

I got a set of those unusual DCC polyhedrals this weekend just for the hell of it, and I was musing on Discord how you could replicate the MSHRPG rankings (Feeble to Unearthly) with a complete set of those dice, like this: Fe (d4), Pr (d5), Ty (d6), Gd (d7), Ex (d8), Rm (d10), In (d12), Am (d14), Mn (d16), Un (d20).

I suppose switching to that sort of mechanic would allow you to ditch the action table, but but keeping something even loosely approximate to the success percentages of the actual game would probably be complicated enough to require one, as shown here:

If you didn't care about sticking as closely as possible to Marvel's percentages (and admittedly, even with this, you've had to give up on the chance of a red success for lower scores) then you could give flat roll thresholds: 4 for green, 7 for yellow, and 10 for red.

I don't actually think there is any reason to do this, but it was amusing to think about.