Yeah I think Doha still doesn't have his original memories coz he made another new save from the early chapters. Doha, Seungchan & Bada were the last players to have their memories. The others decided to be an NPC, relying on them to solve the game or they just see no hope in finishing it. The order of death would always be Seungchan>Doha>Bada. However Seungchan grew anxious that Doha & Bada would escape on their own so he took Doha's original memories.

I just finished and I have ALOT of questions. Does Doha remember the time when only the 5 of them were playing? Because I remember a chapter when Bada told him that he ate the kimchi noodles before and Doha got jealous of the Doha from those times. Does he only have 1 tape? Or did he use a completely new tape to save his memories starting from when Bada “confessed” to him and they got to the torture chamber. Cause we saw from the red haired dude (forgot his name) that it’s possible to have 2 tapes and have those tapes store certain memories. So Im thinking that Doha still doesnt have his original tape from when they first started the game. Also the red hair dude said that him,bada, and seungchan used to play together. During those times, was doha an npc? From what they explained, it seemed like doha and seungchan were the last players to have their memories when they took bada to play for them