Dungeons are like a quest you go though some rooms and fight pokemon to get stronger on your way you will come to a treasure chest which allows you to get new pokemon items from your pc there is also disks which allows you to use attacks so far the strongest is omni which is stronger when it used the first time it seems like the attack power lowwers after your goal is to beat the boss and when you do you claim the reward which is money it also have a delay time after you got one.