Well there is, actually, Not long ago, I stumbled upon a link that explained how Gundam’s head ended up having their helmets shaped, and it was actually derived from the same design concept of a Japanese samurai’s helmet, Kabuto. If you look at Gundam’s helmet closely and compare it with the Kabuto, you will notice the remarkable resemblance of its roundedness along with its double antenna on the front. Since Gundam is a Japanese mecha, it comes little surprise why they’re having a Japanese theme in the series. And you should oughta know that Darth Vader from Star Wars franchise, whose helmet was inspired by the original Kabuto helmet which is worn by a feudal Japanese Samurai, Date Masamune.

And this blogger from AltJapan.com certainly proves there are more and more feudal samurai from the ancient Japanese warring periods being used in many of Japanese otaku pop culture, including the Gundam series.

Here’s the link that he can show you a few Super Deformed (SD) characters resembled each of the feudal samurai outfit in such fascinating match.

Source: AltJapan.com, Wikipedia.org