The show boasted not one, not two but FOUR different intros.
The first one, sung by Enrique, was a direct adaptation of the original Japanese intro and, apparently, it ended up being censored because the word "race" was used in the lyrics even if it was referring to big-ass robots:
The second intro, by Noam, was much more light-hearted and kid-friendly. Also much more boring:
The third intro was another version of Enrique's first intro, this time sung by The Goldies and improved slightly:
French anime theme go-to guy back in the day, Bernard Minet, then gave us this intro which, weirdly, ended up being my favourite of the bunch:
Hope you enjoyed this little trip down memory lane, here's the original Grendizer theme which is, of course, just as epic as it always was: