Board Thread:Game Updates/@comment-1820055-20150331022016/@comment-25927310-20150410132629

112.206.213.191 wrote: What does it mean by "Can be unlocked upon clearing 1-5, every month "??

Do I have to clear 1-5 once or kill the boss there?? (By kill the boss means the life of the boss at the map) yes..

1-6 unlocked upon 1-5 clearance (life bar depleted)..