Brings back memories!
I loved how you put together the medley, things flowed quite nicely. I remember playing the Donkey Kong games when I was younger and this certainly brings back memories!
The piano sounds very, VERY synthetic- perhaps you could try to give it a little more warmth and take off the ping with some eq adjusting. Also, the velocity levels seem to be all the same on your repeated notes, giving you the dreaded 'machine gun' effect.
This could really shine with some additional instruments- the piano is very nice but there are many places where I could see some strings and bells (for instance in the underwater theme).
All in all awesome work Nigel!
5/5
If you have a moment I'd love to hear your thoughts on my latest piece, -Orr- Colony!