beta
You know what. All these revelations have told me that you can't trust anything they're saying. Everyone is an unreliable narrator.
With the option of removing tapes / interfering with them.. who knows if what Doha or Seongchan are saying is the actual truth? They may believe it is, but someone else (Bada?) could have wiped their tapes (save files) in the past and they wouldn't be any wiser.
Saying that Bada is an NPC based off not being able to kill the killer.. isn't necessarily the 'truth' either. They're making assumptions about the rules of the game and stating them like they're facts.
For example: In one of my DnD sessions my party learned that in order to push open a particular door we would have to dance or else we'd be electrocuted. It turned out that the door was completely safe and that the dancing turned off the lightning spell that activated whenever someone touched part of the building. But because we'd touched the door first and been zapped, and then did a little dance and didn't get zapped, we made the assumption that we always had to dance to not get zapped (which technically worked but for the wrong reasons).
Hence, there could be other reasons why Bada can't kill the killer. Maybe Bada is playing the game on hard mode? Or maybe it's a - good at solving puzzles, but can't damage anyone - thing. Not sure what the others would be.. good at acting, bad at staying alive? Good at fighting, bad at working as a team?? Yeah, I don't know.
I'm also suspicious of the line "It was like you were born to be a gamer"... Is that foreshadowing?