Japanese Star Wars v. Japanese Spider-Man

I would be remiss in my ongoing attempt to unite animation, sf, music, and golf otaku of all genders, ages, and nationalities were I not to pass along these gems from the 1970s:





Which is better at blowing your mind? Note how both the giant robot and Kamen Rider traditions are invoked in the latter. But the former's lyrics must not be underestimated.

Can you top these?

[Update 1 (9:57 am): I vote for the latter, on the grounds that its opening probably influenced The Tick's theme song:



But I'm willing to be persuaded.]