piloted by the brash and sometimes arrogant but always gallant and well meaning Koji Kabuto, Mazinga Z fought against the minions of Dr. Hell and his many kikaiju (robot monsters). and there were a ton of them (some of which sounded a lot like Godzilla and Rodan, which surprised me the first time I heard that!).
such as identifying Sayaka, the pilot of Aphrodite A as "Howard" in more than one episode. what happened here, and in many other gray market HK DVDs, was that the Japanese was translated into Chinese for the subtitles, and then into English subs from the Chinese subs. usually the plot is understandable, but a basic knowledge of the show is needed. Mazinga him self is called "Devil Z" a lot, which is a near translation of his name ("majin" is "demon" in Japanese- マジンガーＺ, Majingā Zetto).
anyway, it's fun to watch again for the first time in 7 years.