There's been thousands of death games since 1970s and the fact that done in Asia. I expected typical romance overtop melodrama stories. I was completely wrong and show caught me off by suprise, so I'll have to watch it again to fully analyze the show. It is clear the show has a lot subtext and hidden meaning. Children games, Colors, Shapes, and Numbers was used through the entire show. What I have so far:

blue group = underclass/minority
#= most are in extreme debt, immigrants, elderly, etc.

red group = working class
Circle = Cooks, Drivers, etc
Triangle = The Police
square = The Managers /Supervisers

Blue and red colors are constantly used throughtout the show. Which is part of South Korean flag known as the Taegeuk. The blue represents the negative cosmic forces and the red represents positive cosmic forces as the yin and yang. You have the blue group labeled as numbers and red group as shapes.

black= govt
frontman = enforces the rules

The rules so far:
Player consent form
1. player is not allowed to stop playing
2. player who refuses to play will be eliminated
3. Games maybe terminated if the majority agrees.

O rules
1. always wear mask
2. Do not converse without permission
3. Do not leave the room without permission

yellow = Yellow light shinging on top of the pig = wealth and fortune

The core of the show seems to be social experiment on meritocracy and commentary on social classes.