If done correctly by the right people with the right budget, the above description of a Godzilla pictured fissioning - and even burning - by the radioactive fire inside him, could indeed work out very well. Together with showing him being in a constant heavy pain because of that nuclear inside which ultimately is the reason that makes him so liverish and mad on everything in his path.
Combined with and placed in a dark surrounding like people and things near him being vaporized by the heat he radiates and even the ones far away still getting killed slowly by the radiation that he leaves... that could possibly result in the most epic and horrific scenery ever seen on screen. If
everything works out well for this project. Just saying that. And now watching this scenery with my imaginative eyes... EPIC!!!
The bold is a problem for me, it takes away the "God" and makes Godzilla seem like GINO, a creature who's attacking not because he's a force of nature, or because he's defending his territory or anything else. Just attacking because he's in pain like a normal animal, and that you feel more sorry for instead of thinking man "this thing is unbelievable!" Or "dude this thing is completely insane!" It would be more like "Wha? He's attacking because he's in pain? I thought I came to see Godzilla, not a monster having a fit because he's having a nuclear-ache, or nuclear heart burn." Godzilla in Godzilla vs. Destoroyah was pretty much being himself like it was a normal day. Some could say that he was in pain which is why he attack in the beginning of the film, but I always thought he was just letting off nuclear power and cool down. Besides that, Godzilla was trying to follow Junior and just feed off of more nuclear energy.
Don't get me wrong, in some cases, there has to be some kind of logic or reason for a monster to attack something. Godzilla attacking mainly because he's in pain is a good reason, it just doesn't seem like a good reason to start with when dealing with a brand new Godzilla film in the U.S.
I have to agree with you...Seeing Godzilla simply walk pass people and those people dissolve/vaporize or burst into ashes because of the extreme nuclear radiation and heat he gives off would be awesome to see on screen.