it's different, but it's not glitchy, it's a good thing it's been awhile since I touched the original otherwise I'd be screwed because you'd be trying to break all your habits. The game is actually helping me play more strategically, use more moves, and not be lazy and stay on my feet with reflexes. I like how enemies have more armor. Having weaker armor myself sucks, and some of the challenges are pretty tough, but all and all it's pretty good.
wall jumping between two walls has become easy to me, even using a joystick, but trying to wall jump up one wall is a bitch. Running is required a lot more, but you can also get away with using your crouching jump a lot.
my main problem is getting stuck and seriously not knowing if I'm supposed to be there or somewhere else. I've done alright but I've still barely scratched the surface. Some of those enemies totally waste you too, like the LARGE hopping dudes, and I bet that's a joke compared to what's coming to me.
anyways I've been slowly loading up youtube speedruns on my dial up to see what to do, it helped me once but I am again mystified on where to go, it would just be easier if their was a text file or something, if not, then I'll just have to figure it out myself.