I may be a dumbass but I've been stuck trying to find the first ending for a couple hours now(represented by a B, apparently). I resorted to combing through c3runtime.js for answers but I'm not particularly knowledgeable about programming languages outside of XML so no luck there. So far I have tried: Unlocking the nudity option, both with and without having clicked on Momo's head, talking to her and choosing not to have her remove her mask, talking to her and having her remove the mask, being respectful about her lack of what I assume is face skin (honestly it is a little hard for me to tell if it is muscle or severe burning or something else), being rude and then backtracking, and being a terrible person and telling her to kill herself, and clicking on her face once she removed the mask.
Some small issues I noticed:
-When she makes some facial expressions a black dot appears in the upper left of the screen, just to the right of the polka dots.
-The grammar is a bit unusual or incorrect in some places. If that's something you are interested in improving, I can point out some examples, but for the most part it doesn't detract from the experience.
Unrelated to the above, Momo is a precious creature and I want to hug her and comfort her, she deserves better. Also my oblivious self genuinely didn't realize she was referring to her ass the first time when I got to this part, I thought she was talking about her nervous/awkward behavior or her mask:
=> "Not used to anyone talking to me at all.",
() => "Let alone someone talking to me and not bringing up my... you know...",
() => "TalkTired2",
() => "What do you mean?",
() => "To be honest, it's pretty hard to ignore"