Well hi there! Sorry to say that this is not really an appropriate place to ask about EVERY feature the game has to offer. The best thing i can tell you to do is most certainly check out the discussion threads we have here in the Black 2 and White 2 forums.
You could also do a Google.com search about the games and you would most definitely find a lot of information that way.
Some of my favorite discussions here containing a lot of information on the games are located in the Medal System thread, the Genesect discussion, The Pokemon World Tournament thread, Pokemon in B2W2, Akuroma (Colress), and the Join Avenue.
For now, though, I unfortunately have to close this thread. however, please feel free to discuss in any of the open topics I have listed, and as well as any other topic you may wish to partake in. I just listed some of my favorites. c: