lol ok then
Nice. I would make the text just a bit faster, just because it can get a bit boring when you're just waiting for someone to stop talking. Otherwise, great.
you could make it so one person plays using the arrow keys, and another with wasd. Maybe. just an idea.
you should be able to "enchant" your weapons or something. idk
in order to erase previous lines, you need to make him draw over them in the same color as the background.
Don't use JSON, use the pickle module. You can look it up, or I can help you with the basic syntax if you want.
I don't think there is a way to display an image in python with turtle, however, you can with pygame.
You could also use the pickle module to create a new file in binary, so it would take up less space. I think it would also make the code a bit shorter, but I don't know.