Help. I cannot figure out how to join my friend's private co-op game. we both have added each other's user ID, but I cannot find his room.
Open 'Users' by pressing Y(△) and select your friend.
Do I do that after he has made a room or while I have a room open? Also, I noticed an option that was unusable above the "unfollow" option.
If your friend made a room, you should open 'Users' and join the room.
I am sorry that the current version may display 'Join the room' in Japanese.