
Ryoba is not threatening to Kocho Shuyona in this mode.Some of the schemes must be unlocked by the serial killer at the town. However, most schemes are unlockable at the start of the game. Info-chan did not yet exist, meaning it is not possible to see the schemes' steps.Ryoba Aishi's room is different from Ayano Aishi's room in 202X, and the video game console in her room is the "Mafukuru Entertainment System", which is a reference to the original Nintendo Entertainment System.All Student's Profile in the pause screen are loaded up at the start of the game, as you cannot take pictures with a phone.Instead of students calling the police on their phones, they will call the police on the landline phone located in the Faculty Room.


Her appearance will resemble the Ayano from the save file that was used to start 1980s Mode.

In 1980s Mode, the main character is Ryoba Aishi, who is the mother of Ayano Aishi, as well as the yandere girl featured in the Mysterious Tapes. Currently, the mode can be accessed directly from the title screen, before the main menu has even appeared.

This mode can only be accessed through a save file that was used to beat the game. In the full game, after beating 202X Mode for the first time, a new difficulty mode may be unlocked: 1980s Mode. It serves as the prequel to the game's main story mode, taking place in the year 1989. 1980s Mode is an official mode created for Yandere Simulator.
