No one remembers Tranzor Z?

Big time fan here.

Ok, here's the low-down:
Mazinger Z (or Tranzor Z as I first new it) was the first robot created and was piloted by Kouji Kabuto (or Tommy I think he was called in Tranzor Z). At the end of the series, Mazinger Z over-whelmed by enemies when Great Mazinger, piloted by Tetsuya Tsurugi rescues him and then effectively takes over the job of protecting the world.

PS: the little vehicle used by Kouji to pilot Mazinger Z was called the Hover Pilder (or Hover Glider in English) and was replaced by Jet Pilder (Jet Glider) later in the Mazinger Z series.

Also, if you have watched Tranzor Z, you would have seen bits of Great Mazinger as well, as when they edited it for American audiances, they sort of mixed shots from the two different series together, so sometimes Tetsuya appears instead of Kouji and Great Mazinger appears instead of Mazinger Z. (This can be seen especially in the first episode of Tranzor Z when Tommy's grandfather is explaining the powers that Tranzor Z has to Tommy. The lighting that shoots from Tranzor Z's fingers is actually a shot of Great Mazinger using his "Thunder Break" attack. Also, the long shot of 'Tommy' docking with Tranzor Z as it rises out of the ocean is once again actually Great Mazinger and Tetsuya.

Another series Grendizer (Grandiser? for the American version) sets place after Great Mazinger and is quite different in that the hero and his robot are actually from outer space, instead of being from Earth. I personally didn't really like it :\
Also, Kouji makes a few appearances in this series with Mazinger Z =)

In 2000, an OVA series and later (in 2003) a movie called 'Mazinkaiser' were released which basically sets place in an alternate version of the Mazinger universe where both Mazinger and Great Mazinger are fighting enemies together but an even more powerful robot "Mazinkaiser" is discovered. This version does not include Grendizer.

PS: I recently changed my name display name from "TheMaskedGunman" to "Alachas"