I think a demo may be helpful to those were not familiar with the original.
However I did buy it last night and musically it certainly has the feel of an Amiga title.
I have only tried the tutorial so far, the controls seem responsive. I am getting used to the fact that your thumbs can cover up some of the gaming action particularly when you are dropping down platforms. I think that is the only drawback so far but it does work well all things considered.