Demo 2.0 essentially has seven endings: 3 Leon Bad Ends, 3 Vincent Bad Ends, 1 Survival (Good) End 

To get Survival End, you need your affection points for both Leon and Vincent to be equal. So this isn't so much a guide specifically for how to get there, but just which choices come with affection points. (Because that's my secret, most don't... Or they count towards a third unannounced value for the final update of the full game.)

Otherwise if Leon affection points > Vincent affection points = Vincent Bad End 2; vice versa for Leon Bad End 2

•  What will happen if I try to select them...?
  • Can select any choice
• The floating menus are back!
  • Can select any choice
• I look around the room. That's when I notice the first stall is shut.
  • Ask if they're alright -> gives a CG
  • Leave
    • LEAVE! LEAVE!! I GOTTA LEAVEEE!!!
      • Timed choices, doesn't matter
• Actually no point in wondering, I need to pick an answer!
  • I'm not sure -> +1 Vincent
  • Please don't kill him -> +1 Leon
• ...Of course. Right on cue.
  • Cheer for Leon -> +1 Leon
• Oh, come on! I'm in the middle of a run here!
  • Can select any choice
• So you remember our first conversation?
  • Can select any choice
• ...Can I kiss you?
  • Yes -> +1 Vincent
• There’s no statements about killing anyone this time. I should probably just answer truthfully.
  • Yes -> +1 Vincent
  • No -> +1 Leon
• Why.
  • Can select either choice
• These choices are stupid!
  • Can select either choice
• Well, at least it’s better than school lunch.
  • Can select either choice
• Do I really want Reme's attention, too?
  • Ask for Reme's help -> +1 Vincent
  • Leave with Vincent -> Vincent Bad End 1
    • I can’t let anyone else leave me now. You’re the only one who was kind enough to talk to me so you’re the only one I can trust.
      • That doesn't make any sense!
      • ... -> gives Bad End CG
• What the hell are these choice labels?!
  • Can select either choice
• Neither choice really echoes my true thoughts.
  • Can select either choice
• Is this… some kind of trick?
  • Can select either choice
• Why is this… a choice…?
  • Wasn't that what you were working on? -> extra cutin image
• [Loop Texting menu]
  • Text Leon -> will skip the loop
• Think, think, what should I do now?
  • Can select either choice
• This choice is based on if you chose to text Leon
  • If texted Leon: What the hell is he doing here? Is he just watching me right now??
    • Call for Leon -> +1 Leon
    • No selection in 20s ->Leon Bad End 1
      • Tell him not to shoot -> gives Bad End CG
  • If did not text Leon: What the hell?? What’s with that first choice??!
    • Punch him -> continues story
    • No selection in 15s or the nonsense choice -> Leon Bad End 1
      • Tell him not to shoot -> gives Bad End CG
• My brother, right…
  • Can select either choice

----------------------------------------------------

If you've made it here, don't worry about affection points anymore (for Demo 2.0). This is the last important choice:

• I do want to tell him, it’d take a load off my shoulders. But, is it really alright to involve him?
  • Tell him what's bothering you. -> Are you sure
  • Yes 
  • Leon -> Leon Bad End 3
  • Vincent -> Vincent Bad End 3
  • Don't say anything. -> Survival End