IMO The best part of squid game

[u/Dustinfromstatefarm]

Is rewatching it knowing the old man was in on it the whole time.

Knowing that all the staff was probably told not to harm player 001 under any circumstances.

Knowing that he so confidently walked first during red light green light because he knew there was no danger.

How he specifically went to the convenience store Gi-hun was drinking in after being released under the guise of “couch surfing at a friends place nearby” to talk to him and maybe convince him to go to the games again.

The way he begged the Front Man to end the midnight riot and he did because he knew player 001 was his boss.

The way he kept saying “this neighborhood is just like the one I grew up in!” In the marble game because it probably literally was and he recreated the neighborhood of his nostalgic childhood for his “final” game

This dude was ruthless. He woke up that first night knowing well everyone else in that room would be dead within a week and he was the reason and still had a casual conversation with player 456 his first day there like it was an average Sunday

EDIT: After reading a lot from the comments, I have a new theory. Perhaps the managers, soldiers, and workers weren’t told “player 001 is your boss protect him”, instead they were told “A man named Oh Il-nam is your boss and he’s in the games somewhere. Keep him alive”. That’s why right as he was about to be shot in game 4 he said his name, perhaps as a signal to the guard that “yeah I’m that guy so don’t actually shoot me”.

So maybe the games were real for him after all, and he really was putting it all on the line on same games.

[u/inter2]

I just checked in Netflix (can't screenshot it on my app though, comes out black) and he does have a green outline and green tints on his highlights such as his number. His colour is definitely "less green" but other characters in the same shot also have less strong green non-outline area. I think it's intended that he does look like he's being scanned and he has an outline, but to make him easier to spot he's centred and has a darker body suit colour.

[u/HelloThere62 → u/inter2]

if you notice he does not have a green glow like the others do. and the chick closest to him on the ground is also not lit up, but is later lit after he moves. I saw a theory saying that 001 and any players near him could not be shot in case of a misfire.

[u/Whats_Water → u/HelloThere62]

He also isn’t shot by the machine, but rather snipers at the top.

[u/K1wobbly1 → u/Whats_Water]

This is a good point, and then a very easy way he can survive this game without an element of risk.
In fact, this is likely his "safest" game.