Myterious approach are always welcome in Kamen Rider series, just like Kuuga and Agito, too many mysterious to be reveal in later stage.
lol, the scene where Kota helps the lost kids consider copied of Kuuga ep1, lol..

http://en.wikipedia.org/wiki/Gurongi#N-Daguva-Zeba
Gurongi tribes is merely having a hunting game on human, more alike like what predator in predator series.
As you can see from their naming, they have ranks, playing the game is more likely that if they have achieve certain level in a game, they could join higher rank group.
Of course, in the series, none of the gurongi have ever get into higher rank, defeated by Kuuga before they could do so.
As for daguva, he certainly have other objectives since the revival, from what i know, it's more likely he know that kuuga could evolve into something like gurongi, therefore, he wanted Kuuga to get stronger and achieve that state, and when that happnened, gurongi game could be even more interesting to them.

Somwhat irony when he mentioned that line, as the actor of Kaito already said he hate banana in some interview.

He is quite an idiot at times, lol.

Well, for Hibiki, just watched up until 30 episodes is enough, even though the story is unfinished, but the episodes after that is total shit after they change the production staffs.

Don't need download la, youtube got almost everything.

The reason I think so is because the new producer and scriptwriter changing almost everything about Hibiki after taken the series away from Shigenori Takadera, the original producer of the series. Or should I I say, Shinichiro Shirakura, the new producer has very less understanding of what Shigenori want to do since he have no involvement in the series at all before he take over the series.

and I actually watched the series without knowing the production team changes, however, I could immediately sense the different of the episodes before 30 up until episodes 32 or so, the changes was so obvious and it bugs me that I have to checked up news and wikipedia about it then only realized why was the series changes so much after ep30.

I'm not saying that Shirakura was not good, he is still a really good producer as he has a lot more involvement in Kamen Rider Series with agito, 555 and etc, producing his own version of Hibiki will not be much tougher for him. But having him adding his own recipe in Hibiki was totally not up to my taste.

Let's call the new series Kamen Driver instead...