I recently updated the Arcade and Game Center Chirashi Database to remove direct access to the scanned version of the documents. The information itself is still there.
I decided to remove the document simply because I want to avoid any copyright infringement problems that could come up as a result of having them being available for virtually anybody on the internet to download. I discussed with the staff from the University of Alberta Copyright and Licensing Office and they advised to implement a way to limit the distribution of the material to academics and colleagues, which was not possible with the previous structure of the website. Until I have time to work on a better solution, access to the scanned version of the printed documents will now be limited to scholars interested in working on arcades and game centers. I would be happy to share the files with any other colleague in the field.