I finally finished this too, and while a fantastic series, it was not an easy watch.
The "games" being presented as some sort of fair, equal opportunity chance to the hundreds of players, while never revealing that there would be a mass execution in game one was so anger inducing. The players may have known more about what they were getting into when they "chose" to return, but there is no denying that they were not given the full truth at the beginning.
Not to mention the idea of "choice" in the lives of these characters is very complex.
Ali, Sae-byeok, Ji-yeong, and the hus