did you stop flora from baking in tiny thirsty tree (love path), or did you help her bake (lust path)? one of the prerequisites for squid game is having chosen the former
the prerequisites for squid game are:
— everything up to Tour de School
— Operation B. O. B.
— Tiny Thirsty Tree
— The Statement
— The Glowing Spider Eggs
but you don't need to start the game from the beginning, you can just use the chapter select menu to play squid game right away!