Transfer-San is a short (10-15 minutes) Renpy videogame made as a class project made by Grifflon and myself. The game is a very simple science-fiction story that uses the framing device of a school-age visual novel set in a Japanese school to talk about the untranslateable nature of honorifics in Japanese and the ambiguity they can introduce in communication with non-Japanese speakers.
The game is free, and you can download it here:
Digital Asia 