I also have found that some things don't translate when it came to analog. So, if you are using a wired 360 controller or something, you might not use the stick for EWJHD. I found the stick to be really bad when trying to pick your @$$ up away from the Lou Ferrigno Cats.
Also, one of the main differences I found in EWJHD from normal to original difficulty is that the game assists some of the movements. For example it automatically press up for you when hanging on a ledge from the roided out cats. And the hit detection is made much wider when trying to dock at the air valves in down the tubes. But the enemies and level design seem the same. Same number of hits, etc.