lol, I understand this could go on for a very long time and that is fine. We are just looking at it from different POVs.
Of course Gamma would kill/cause cancer/etc.
But the point of the movie is, they are injecting super soldier serum (and this stuff is what allows Bruce to survive the Gamma radiation).
The Super Soldier Serum (SSS), is something the military is working on and trying to create, exactly that...a Super Soldier.
So therefore, the gamma in this context does not kill Banner because he has the SSS in him, which allows him to survive the gamma.
But the mixture of gamma and SSS may cause rapid growth of cells or trigger some sort of chemical balance in the body which allows for increased size/strength etc.
(The green thing is simply because, he is the HULK - or maybe that has an explanation, maybe the chemical is green and it taints his skin when it takes effect)
So therefore, since Blonsky injects himself with TWICE as much as Bruce (so they are saying) and it is injected all over the place (in his bones/bloodstream etc) The overdose of the not-yet-read SSS causes takes an extreme effect on his body.
Therefore when the gamma hits him...he has an extreme amount of chemicals in his system which warp his body.
His body in no way looks UN-HUMAN... it is just pressed and mutated to the max. His bones are protruding and his skin is rough.
All I am saying is, that is believable. It is beleivable that chemicals can WARP your body.
HENCE: Steroids, make people bigger.
But if you wanted fish ears, you would have to go to a plastic surgeon.
That is why I can "believe" that a mix of SSS and Gamma would do that to you.
It would "warp" your body...
it wouldn't change the human anatomy into a fish-like creature.
...make sense why I can believe that now?
--dk7