Thank you for the translation! The third option, "Start game," does nothing for me at the moment. However, clicking the first option brings up this menu:
I know that the option says "Uninstall," but could it actually be an installer/uninstaller? After mounting the disc image, I know that I have to run an installation to actually get the game, and since the option "Start game" is not working at the moment, could the first option be the installer? A translation of the text in the image would help greatly as well, presuming it is still within your realm of Japanese knowledge. Thank you for