When you first start up the game, it asks for an age between 00 and 99. Spoiler:This age choice does not refer to the player, but to the main protagonist Marina Liteyears, and has an effect on one frame in the true ending of the game. If Marina's age is set to 15 years or younger, her true human form will be physically closer to that of a child. If her age is set to 16 years or older, her true human form will be closer to that of an adult.
Contributed by MehDeletingLater
Attachment
Attachment