With Hyperdimension Neptunia Re;Birth 2: Sisters Generation now out on store shelves within Japan, Japanese video game website 4gamer.net have shared the below twelve minute gameplay video which may help tide you over until an international release announcement or your imported copy arrives.
Developed by Compile Heart, Sisters Generation serves as an enhanced PlayStation Vita remake of the PlayStation 3 title Hyperdimension Neptunia Mk2 which was published internationally by NIS America.