Everything was based on d6s. Though the boxed set comes with special DCU dice, with symbols instead of numbers, these necessary for game play. No more dragging out those d20s, d4s, or d37s. DCU uses the same system, but it s even simpler. While simpler is not always better, I think it works in the case of comic book super heroics.
Character creation is a breeze.
The GM sets the power levels and characters are created from a dice pool. All abilities cost a certain number of die. One addition they ve made to DCU RPG is an advantage and disadvantage system. I like this trend in gaming. Skills and powers are pretty numerous, though other gaming systems offer more.