Cassette tape= save their progress save their progress= save their memories from previous games
Their memories from previous game= breaking the 4th wall, it means knowing they are a character in the game
without inserting the cassette tape= They no longer knows they are a character in a game they became a regular NPC
additional: If any of you plays video games there is a "Load game" and "New Game" option, click the load game and you will see your progress where you left it off completely intact, so the inserting the casette tape into the music player is equivalent to "load game" option.
Cassette tape= save their progress
save their progress= save their memories from previous games
Their memories from previous game= breaking the 4th wall, it means knowing they are a character in the game
without inserting the cassette tape= They no longer knows they are a character in a game they became a regular NPC
additional: If any of you plays video games there is a "Load game" and "New Game" option, click the load game and you will see your progress where you left it off completely intact, so the inserting the casette tape into the music player is equivalent to "load game" option.