Is Ducktales any good? Never played the original.
Graphics are nice. The rest is meh.
They used hitboxes, that only cover parts of the enemies. Which means it's not pixel perfect. You can go through a small part of them without getting hurt and the levels are even designed, so that you have to do this. Which means part of the gameplay is crossing your fingers.
On PS3 the whole thing even froze my console 2 times. No idea if that's better on Wii U. I wanted a physical copy, that's why I bought it on PS3. You can't save during a level, which makes freezing worse. And you even have to play through the whole game on extreme difficulty for a trophy on PS3, which makes freezing unacceptable.
In US they released a patch for PS3, so that you can automatically skip over the silly cutscenes. That patch never made it to Europe, which also sucks. No idea if that feature is available on Wii U and if it's available everywhere or not.
The original was awesome. It was pixel perfect platforming. The original is not included (of course), only the music of the original is (as an unlockable).
Oh and they even changed the bosses to be "more difficult" and also added randomness to it. The last level (which was not at all in the original) features nice music, but the level design itself is pretty bad. And the escape part in the end is really awfully made (unless you use a few tricks to do shortcuts).
I read that a really bad slowdown, which happens during one of the boss fights on PS3, doesn't happen on Wii U. No idea, if that's true. But the slowdown is really bad and I have no idea how they managed to do this.