ive never done that. do you just have to do it once or once per access
Well, maybe you should complete existing dungeons. :3
You need to clear it once.
O___O; uhh... heya, toby! by any chance.. uh.. does that... you know, count the ones on the roof?
Yes, the boss on the roof counts too. ;P You should give it a try, they are not that hard if you focus. ;P