!!!SPOILERS!!!(should be obvious by now XD)
Thanks! I saved Skinless Woman and Purple and then the DDLC music came on and it all became clear XD Is the Skinless Woman Monica? And is Purple Sayori? And Red could be Yuri, because death by stabbage or Natsuki because of anger( although Natsuki isn't that psycho kind of angry, she ist waifu) and so Blue would be Natsuki then. Was this intentional or am I just wrong? Either way it's great!!! But does saving certain ghosts change the blue machines response?