Locked doors?

[TinyMercy ♡]

Me and my friends try to find a way to unlock all the locked doors, but don´t know how, Isen´t it something you can do in co-op? We don´t understand how to even open levle one door. :(

[Breadroll]

Doors will unlock automatically as you progress. The ghost favourite room will be within the unlocked areas for each attempt, and then after three successful games you will be able to play an exorcism match. After this, new ghosts will be available with a larger portion of the map available.