New “Co-op battles” feature will be unlocked at level 14. Invite your friends or Guild members to clear the stages together! By clearing co-op battles, players will receive awards like experience, coins and fame points.
This feature can be entered at any time.
The best time to clear co-op battle’s stages is between 12:00 - 13:00 and 18:00 - 19:00, because the rewards is increased by 100%.
After clearing all the normal stages, you need to defeat secret Stage
Chapter 1 is easily cleared. It’ll start to get a little difficult on Chapter 2.
If team isn’t full (3 players), or if there are no higher level players helping, it’ll be difficult to clear the stages
On upper left corner of your screen, you can adjust team formation and put one of your partners to fight with you.
Every position on the Formation gives different bonus, so adjust everyone’s position as how you see it fit.
Remember to collect rewards every day, it’s best to clear as many stages as you can before 12 o’clock.
If you find any difficulties clearing a particular stage, ask higher level players for help.
But remember not to depend on other players too much, or you’ll be too weak.
If you want to ask for help, it’s best if you ask after 19:00 because after that time, player most likely would help you.
Above is the basic introduction to Co-op Battles