[806mtson]

I think that the reason why Vice didn't change much is that they had to accommodate the Transformation.

But, there are some of the Main Riders whose Torsos would make Revi Forms based upon those Riders difficult as they have something weird with the torso. OOO's chestplate has the huge emblem which shows the form's Parts. That would be difficult as the emblem is the most major element on OOO's Many Form. It would be rather difficult because of that emblem. And Drive has the Shift Tire where the Vistamp's Symbol would be. The only way for the Drive Vistamp to work is if it was based upon either Drive: Type Wild or Drive: Type Formula. But OOO does not have such a way to make it possible.