Yea, I have this on the PS3, normal is easy as heck....but I'm trying to get the trophy for beating Super Hard. It's a pain just getting by the first level. UGH!
The challenge rooms can be a little difficult, I'm stuck in about the 53 out of 56, (maybe idk if that's the right number) I did all the others in about 15 times max, this one it says I have attempted 498 times already.