I would have to say Ingram's marble resembles Oberus' marble more. But yeah same concept.And a better example of the re-use of marble forms is Skyress and Boost Ingram.
fix'd Personally, I don't really see how SS looks like Skyress, unless you go in to the mechanism stuff again.And I see the Rabeeder now, but it looks more like El Condor. Druman could easily be an Apollonir with some design changes, although SM would get some backlash from the fans if designs get extremely close.
You mean Sega Toys, right? Spinmaster is just a distributor.
Uhhh, sure. Whoever designs the Bakugan.