This hack changes all levels. New levels more harder, contain new secrets. Also bosses changed too.
Note:
For some reasons it's contain French translation, this is not bug or patch error, ask author.
Duck Tales (U) [!].nes (GoodNes 3.14)
CRC32: DCB94341
MD5: 34FD4014AFD15B562D7100F641F900AB
SHA-512: 4B5720BC6E0590C9372CFBD0C418F8EFD4D0C96D