DuckTales - S3K Music is a ROM hack of the original NES DuckTales game. Instead of the original soundtrack, it features music from Sonic the Hedgehog 3 & Knuckles. This alteration changes the audio experience but retains the original gameplay and level design of the classic NES title.  The ROM hack was created by the fan community and not an officially licensed product by Capcom or Sega.

DuckTales - S3K music

Duck Tales 2 (Germany)