Iguana Tokyo (1969) on Netflix

IGUANA TOKYO tells the story of a family that installs the Virtual Reality game M2 in their small flat in downtown Tokyo. The rules are simple: whoever wins, is in charge. The game becomes the center of their lives, defines their reality, and quickly changes the family dynamic, for depending on how well they do in the game, the family members' rooms in their flat increase or shrink in size. The game threatens to tear the family apart, and only their pet iguana realizes the dangerous tension developing between the Mother, the Father and their daughter Tokyo.