I have to agree with palmer on this one! I only recently played the game -- I picked it up on sale from the Wii U eShop. If I had known I was going to enjoy it so much, I would have picked it up on day one!
It you have any affinity for Ducktales, be it the original cartoon or the NES game, you really are in for a treat. The touches Wayforward added to the game help make it feel like you are playing an episode of the show, and the improved control and hit detection I thought really made a big difference.
And of course, no recommendation of the game would be complete without mentioning the fantastic music. The modern day remixes of songs are excellent. The bass that kicks in at the beginning of the Moon theme is awesome, and I find myself even more attached to the updated Amazon theme than the original!
One of the biggest surprises has to be the brand new Mt. Vesuvius level theme. That absolutely feels like it was written for the original game. It's catchy as all hell!