Answers marked like that - the fastest ones to type-in to achieve desirable outcome for Any% (Codes) Route. Those that marked like this - fastest for achieving secondary endings or a particular 'Game over' for other categories.

Since src's markdown is a bit questionable - also added "<--" to highlighted answers.

1. Team C. Suspicion, 'Pantry' escape room.

Decision: WHO KILLED JUNPEI? Possible answers:

AKANE <-- KURASHIKI (Both of those lead to 'Carlos's Sin' cinema fragment)

I <-- ME MYSELF CARLOS (All of those lead to 'Carlos's Decision' and subsequently to 'Game Over')

Following answers are not accepted by the game, but give you a unique pop-up on the screen: Q PHI GAB DOG MIRA ERIC SEAN ZERO PUPPY DIANA SIGMA DELTA JUNPEI DOGGIE ZERO II OLD DOG TENMYOUJI

2. Team Q. Pop Off, 'Pod Room' escape room.

Decision: WHO KILLED MIRA?

CANT <-- DONNO DUNNO NO IDEA NO CLUE TELL ME UNKNOWN BEATS ME NOT SURE DONT KNOW WHO KNOWS I GIVE UP WHO IS IT WHOCANITBE I DONT KNOW YOU TELL ME IM NOT SURE IHAVENOIDEA IHAVENOCLUE

Inputting anything else leads to Eric's Rage (Bad end) with Eric shooting you: I <-- Q ME GAB DOG PHI YOU MIRA ZERO SEAN ERIC PUPPY AKANE DIANA SIGMA DELTA DOGGIE CARLOS JUNPEI MYSELF OLD DOG ITS YOU ZERO II TENMYOUJI KURASHIKI

Alternatively, you can just type any symbol - that will force Eric to say "You're not making any fucking sense!" and kill you, triggering Bad end.

3. Team Q. Triangle, 'Study' escape room. Decision: Kill one [person].

ERIC <-- Triggers Q-END:1

DELTA <-- Triggers Perceptive End.

MIRA <-- Leads to Bad end.

Following choices will allow you to avoid stand-off and get 'Don't Shoot' Bad End): NO <-- NOPE CANT WONT NO ONE NOBODY CANCEL NO WAY I OBJECT WILL NOT WONT KILL DONT KILL I WILL NOT CANT SHOOT WONT SHOOT DONT WANNA IMPOSSIBLE DONTWANTTO IDONTWANNA IDONTWANTTO WILLNOTKILL I WONT KILL

Following answers do not progress the plot, but give a unique screen pop-up: Q I ME PHI GAB DOG ZERO AKANE PUPPY DIANA SIGMA MYSELF DOGGIE CARLOS JUNPEI OLD DOG ZERO II KURASHIKI TENMYOUJI

4. Transporter Room 'You are Zero!' decision. You need to type Zero's real name.

DELTA <-- That's the only way to get a positive outcome and survive Eric's shootout.

Typing following answers brings a pop-up on the screen or a unique cutscene, which result in Bad end 'Eric's Confusion': Q
I <-- ME YOU GAB DOG PHI ERIC MIRA SEAN ZERO SIGMA AKANE DIANA PUPPY MYSELF CARLOS JUNPEI DOGGIE OLD DOG ZERO II ITS YOU TENMYOUJI KURASHIKI

Alternatively, you can type any symbol here to get Eric's "Stop running your goddamn mouth!" response.