These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Some Anvils Need to Be Dropped: Of course Japan knows that nukes are bad, but distributing it among both East and West Germany must have been an eye-opener.
Awesome Music: In the English dub, there are songs by Rush and ASIA throughout, and in the original Japanese, the opening is "Ai yue ni Kanashiku" by Poplar (found in the trailer here and the Ending Theme is the heartrending "Pathetic Love, It's My Destiny" by Kazuko Kawashima. The haunting score by Seiji Yokohama also works.
Nightmare Fuel: Barefoot Gen-worthy graphic depictions of skin melting off the faces of the submarine crewmen as well as the destruction of the world.