The passes drop: SUPERIOR Purple (easy) / few mobs, much time, lower reward SUPERIOR Green (medium) / more mobs than purple, lower time, better reward SUPERIOR Red (hard) / more mobs than green, lower time, better reward SUPERIOR Black (very hard) / drop only from boss/mobs The name of the passes are tangled. You can combine the normal passes to get the superior ones. 3 passes gets you 1 superior (F11). You can't combine the superior passes to enter into the dungeoun. Superior passes also drops from Cave of Conquer dungeoun, with red pass. The dungeoun is the same as Beast Tower normal. Has the configuration, but many mobs/monsters than the normal ones. Also the loot is better.