Yobuko's rumors. If you don't know who Yobuko is, here's a short bio. Yobuko is a poster on 2ch and one of the most reliable rumor source in the Kamen Rider community. (S)he has been correct many times lately, but this doesn't make the rumors posted now true.
In order for Greed's to achieve a full body, they need 9 Core Medals. At start, non of them are complete. Yummy collect Medals from human lust/desire. Different tribes collect medals in different methods. (For example creating nests? 巣 not too familiar with this kanji.) The first Yummy is Mantis (Kamakiri). It seems like there will be scenes from the Greed fights in the opening. All the weapons, bikes and stuff OOO uses is from Kosei Kogami. OOO has a dinosaur form, using a T-Rex medal, Ptera, Triceratops. It seems like within the tribes, there are 3 different kinds. Together they have to gather 9 medals, 3 from each sub-tribe. Ankh is aiming to find all those medals. Gameru seems to be obeying Mezuru's orders.
