Yeah, our roleplay section is a bit different from some of the other websites out there, but you'll find that it's pretty straight forward. You can join new RPs from their OOCs by providing your own staple character in a given SU, and then if you get accepted, you can write in the IC threads! It might take a while indeed, but you'll find that it's fun! I'm active there, so, I know first hand how tight nit our RPT family is. :3
Anyway, welcome, and I hope you're finding the forums to be great so far! The Mystery Dungeon series is pretty fun! My favourites are Sky and Super Mystery Dungeon! Hope it's released over there soon! But yeah, meanwhile, you're more than welcome to check out our pokemon related topics and discussions~
And yeah, there is our ROM hacking section incase you wanna have a look at it anytime. It's quite a popular place, so, I think you'll like it! But yeah, see ya' later! If you ever find you have questions or just fancy a random chat, I'm always available via private or visitor message. Enjoy! ^^