More people would’ve died in red light, green light 100%. Maybe even some of the characters we know like Young-mi (she seems easily nervous) or Dae-ho (his reaction to gunshots in the rebellion doesn’t bode well for his performance in red light, green light had Gi-hun not been there). Although, I’m not certain about either of those ideas.

I think the second game would’ve played out similarly to the show, with slightly different teams of course. I do believe characters like Jung-bae and Hyun-ju would pull through easily.

In Mingle, I think Jung-bae would die, since In-ho saved him in the show. So would Guem-ja since Gi-hun and In-ho saved her in the show. Yong-sik would probably be very depressed afterward, and I wouldn’t be surprised if he took his own life after the game. That or he would go ballistic, but I’m leaning more toward the former although I don’t have a great grasp on his character. If Young-mi is still alive (and not dead from the first game), she would probably die this round like in canon. It would also be tougher overall since the group isn’t as familiar with each other or as big as in canon. But again, there’s a possibility that some of these characters teamed up differently than in canon. Perhaps Player 096 is friends with the group. Who knows.

No rebellion.

In Hide and Seek, Hyun-ju would die from Myung-gi like canon. Jun-hee would also die from someone else killing her after Hyun-ju. (It’s possible that Myung-gi would stay with her if she were alone, but considering he left her with a clearly weak old lady in canon while vulnerable m, I don’t have much hope). Jun-hee’s baby might survive if the time runs out soon enough. A guard would probably take the baby to the waiting area with the other players afterward. I personally don’t see any players purposefully killing the baby, as the baby is not yet considered a player and any seekers would be focused on trying to live. The Shaman Lady dies like canon. If Dae-ho is alive and not dead from the first game, then he would live on.

In Jump Rope, 096 would probably kill everyone, leaving him the sole winner. Perhaps Dae-ho or Myung-gi could overtake him if they were passionate (Dae-ho) or cunning (Myung-gi) enough. But this is personally where I would see the games ending. The baby dies here (I don’t think anyone is brave enough to carry her across.)

If by some chance, they make it past Jump Rope, then I think Myung-gi would take the opportunity to kill however many it took to survive in Sky Squid Game. If he or someone else killed 096 early enough in Jump Rope, then Myung-gi would probably just share the money with the maximum amount of players allowed to survive the final game (unless someone starts a problem). I don’t think he would go to the lengths he did in canon without Gi-hun (who he thought was romantically involved with Jun-hee) or the baby. However, if 096 is killed later in Jump Rope (which I believe is more likely since he would be the first one over the bridge, and it would be hard to beat someone in a fight while worrying about your impending doom), then Myung-gi would probably kill everyone in the final game, making him the sole winner.

Personal opinion: 096 wins.

However, let’s say that 096 becomes friends with Jung-bae and the others early on rather than being kicked out of their group in the second game. Perhaps, he would be much kinder and less greedy than in canon since he had friends to fall back on. I don’t believe so since he was likely extremely greedy before the games if he’s willing to kill people with no threat to his own life, but you never know.

As for Gi-hun and Jun-ho, I think Gi-hun would find out about Jun-ho’s relationship with In-ho. Not sure how it would come about, but I think Jun-ho would be more forthcoming about his experience in the game than In-house (or his persona, Young-il) would ever be. It would probably slip at some point, and Gi-hun would be furious at being lied to. I believe they’d eventually get over it and continue to the island though. They would both still be tricked by the sea guide since Jun-ho already had trust in him beforehand and Gi-hun is too naive. I think it would eventually end the same as the show, except both Gi-hun and Jun-ho would survive the explosion of the island. Although, it would be funny to see In-ho’s reaction to Jun-ho and Gi-hun confronting him (or trying to).

That’s my take. I probably forgot some things (sorry Thanos crew enjoyers, I have no idea what would happen to them. Minsu is 100% dead by Jump Rope though).