Last December in Japan has been released this blu-ray memorial box with 2 disc with all Go Nagai's robo serie movies released during the 70' . The box has been release for the 40th of Mazinger Z saga (1972->2012).
The box contains all movies movies from 1973 to 1976 release by the great sensei Go Nagai, with his main characters of those years. So Mazinger Z, the Great Mazinger, Devil Man, Getta Robo, Getta Robo G, Ufo Robot Grendizer are in this collector box..