if his eyesight is actually not bad, then that implies that he was at some point in the room before and knew that there was a cassette where doha which would mean he has memories of a past game. so either he is lying about his eyesight or he has minor memories of the games (maybe not about the murderer since he was going to be killed but parts of the past games like him being in the house)
loving reading this theory shit
Exactly plus it's hella dark and the lights are off so even if his eyes adjusted to the lighting if his eyesight was really bad his first question would "hey what are you doing over there?" Not what he previusly said.
If he also has no memories of the previous games but his personality is the disposition of liar it means that Doha will likely lure him into situation where he will be forced into using cassette tape and then manipulated into turning against the one guy who's always at Bada's throat with accusations. The guy who is constantly calling him weird and suspecting him of doing crazy shit despite not knowing him that well.
he sees the tape and asks if he's turning on music despite saying that he can only see the shapes of things so the fact that he immediately knew what the items were is suspicious and implies that he is lying about his eyesight. especially when you consider doha only took out the tape once he was at the cassette so he would have never had the chance to see it beforehand