[PrimoPiccolo]

I've been reading up on Ryuki's storyline, and it seems all the Riders are fighting each other for supremacy and the right to a wish. But a lot of these Riders are working for very selfish reasons, and there's a bunch of betrayal that takes place, not to mention death. So I'd say there's a lot the production would have to work on to make such a story presentable to the kids.