Originally posted by Delta1938
I remember it being more than just Thing, but can't remember if it was the same issue or not. Have a specific issue reference for the X-Men thing you're referring to? Too many comics in that for me to be willing to look for it without a reference.
Well Romita sketched the WW Hulk main series, while Andrea Devito sketched the X-Men comics when the Hulk fought them. Cain was full powered, and although he drew blood, it didn't resemble anything like the hamburger faces that Romita portrayed the heroes looking like when they were hit. Look at the Sentry after he fought the Hulk, his face was mutilated. It was just the style of art that made him look all messed up.
Also Wolverine states that the Hulk's skin was hard to cut when they fought, just before the Hulk gave him brain damage. Pak wrote a Hulk that became more durable as he became stronger. As I also mentioned he continues with the idea during the Dark Dimension when the Hulk ignores the combined assaults of Arm'Cheddon, Wendigo, and Bi-Beast's attacks.