Stop acting like an old man. We're nearly the same age and you're acting like you're 55. "Oh, those kids will be kids with their card games and there pokemanz." Dude, you're on a forum about a ninja. You're not 55.
OT: NB has forum games and you can create groups to RP or whatever you want. Having flash games or whatever isn't a top priority. Anyone can google them. People can do that on their own time. A site offering anime, manga, and a forum doesn't need to offer everything for the "kiddies." You're acting like NB is strictly for kids. It's not. This doesn't affect your idea, as older members would enjoy it too, but that's what XBL/PSN/Skype is for.