imo, the original is way better than the remake. I will list what I like of it and don't.
What I like:
•Water effects and levels: They completely improved the levels, especially the water, it's so beautiful. In the levels you can see a lot of things in the background. They did a good job at reinforcing the original 2.5D idea.
•The voices: Jap voices were awesome (DAT GHADIUS) and phantomilian were nice too
What I don't like:
•It looks rushed: the cutscenes have no effects or care given to then at all and every single animation is crappy smooth transitions where I can notice the animation change. I'm not saying smooth transitioning sucks, but the way they used that is bad, it's literally 2 animation frames smoothed: [Arm standing still aiming down] *smooth transition* [Arm doing something else]
•The models: Oh cmon I ripped myself the model from that and it's the same model as Klonoa 2, no improvements or anything. I'm not saying I care about the poly count, since a model isn't good because of polygons, but at least fix things like the ears, they are a separated piece from the head and you can see the intersecting in the game.
•The advertising: Self explanatory
•"Older Klonoa": This is sad. They could've done an awesome model in the style of the first, but instead they just took the model from Klonoa 2 and made a new suit. This is lazyness
These were the reasons. IF ONLY NAMCO was the one doing the remake instead of Paon, this remake would be awesome.