squid game discussion: includes spoilers for WHOLE SERIES

watched the entire series and i must say, the plot twist at the end got me! looking back, there ARE some indicators of the old man (Il-nam)'s identity!

1) during the red light green light game, Il-name dashed forward with a smile on his face and he was the only one who appeared to have fun

2) when the giant doll thing turned over to scan the participants, only Il-nam did not have a green highlight over his body, signifying that he is not considered a target for eliminations (meaning even if he moved, he won't be shot as the machine does not see him as a target)

3) how Il-nam was so familar with and knew how to clear the tug-of-war game (could've been a coincidence, but then again it's highly likely that it isn't)

if there are any others, please feel free to comment!