Step 1 : Weekly stages
The game will release 3 maps every week, and they have 3 difficulty. Once you defeat the enemies who have occupied the streets, you can get the black pearl coins and chest.
"Black Pearl Coin" can be used to redeem rare items and equipment.
Step 2 : challenge the boss
After entering the stages, two of the characters' weapons is stolen, and a Unlucky Wheel will give you a random debuff.