I'm writing, or rather, planning to write a story and comic script set during World War II. The geeky twist is that each nation involved has its own set of special soldiers, based off of their culture at the time just before, during, and just after the war. I.E., there are American superheroes fighting Japanese giant robots in the Pacific, and British mythological creatures fighting alongside wizards and super-spies, against an army of Italian zombies. (It fits, if you're geeky enough and think about it, though admittedly it's not a 1940's thing) I've found it pretty easy to think up supeheroes, both original and analogues to mainstream superheroes. However, I don't know a whole lot about Japanese robots. So far, the only ideas I've come up with for them are analogues to Astro Boy and Gigantor. What I'm asking for, I guess, are some giant robots with retro aesthetics to draw inspiration (read: steal) from. Any help is appreciated, thank you in advance