I have now blitzed my way through 0079, Zeta, ZZ, and Char's Counterattack in a matter of about three months. Obviously there is a lot more Gundam out there, including UC Gundam, but it still feels like I've finished an iconic core piece of anime history and I'm really glad I did it. Being able to trace moments from these shows and their movie, all the way through to current anime and Japanese pop culture in general, is also extremely eye-opening. I highly recommend The Wow Cool Robot Experience.
