This game is incredible on all accounts. Not only did they improve on the video and the sound effects, but the music is stellar as well. This remastered version takes a filet mignon that is Ducktales on the NES and turns into a 10 course fancy feast. Every stage is lengthened with extra play scenes with cinematic scenes throughout. All the missing pieces that were never explained in the NES are explained here.
Be prepared to have a very fast computer as this game is a CPU and video memory hog. The video is that good that it needs all that power. This game is worth every penny. I highly recommend it if you are from the 8-bit or even 16-bit era.