Up to five players may form a team and battle against enemy NPCs in Mission Mode.
Each Mission has five difficulty levels, so choose the level that's best for you and your party.
Go to the Mission Counter in the Central Area, press the Mission button from the menu, or press F3 while in the Central Area in order to access the Mission room list.
You may create your own room or join someone else's. Once players have gathered, press F8 to start the Mission. Gather powerful allies and challenge the harder difficulties.