User blog comment:PerhapsTheOtherOne/Speculative Spitballing: Goliath/@comment-25555436-20150608190144/@comment-25555436-20150608195916

Wrong....they do cause damage to them, they did hurt them, the pain was just not enough to make them notice it, at worst they flinched a bit. And even then, any damage is soon recovered thanks to their Healing Factor.

It's like with Wolverine. He's tough, but you can hurt him, and you can make noticeable damage to him. However, even if you do, he normally won't give a damn and even if he does, good luck breaking his Healing Factor without secondary help.

Also, the fucking nuke thing was bound to fail because Godzilla is NUCLEAR ENERGY ALIVE. He heals with nuclear energy, giving him a nuke is like passing him a huge hamburger full of medicine. Hell, in some versions, it was Nuclear explosions what made him nuclear from such overexposure to the radiation (cause....reasons. Really, in that way, it has some Comic Logic).