Microsoft has the newly released 4k Ultra HD release available for only $5.
Originally released in 1995, Ghost in the Shell was a stunning look into the future of cybernetics, AI, and computers at a time when the internet was a fledgling technology. Ghost in the Shell spawned multiple anime sequels and a live-action remake which was not very good. It was also a big inspiration for the Wachowskis and a lot of the anime’s influence is visible in the Matrix.
On the site select UHD and be sure to select Japanese Audio unless you are a fan of English dubs.