From the Super Mario Wiki
Lazy Landlubbers is one of the enemy classes listed at the end of Donkey Kong Country 2: Diddy's Kong Quest, during the credits. This group includes all land-dwelling baddies that can be found on solid ground, as well as flying enemies. Although many Kremlings walk on land, they are not included in this category, as they have their own class. It is Donkey Kong Country 2's equivalent of "The Bad Guys" from Donkey Kong Country, as well as the "Terrorfirma Tuff Guys" and "Flying Fiends" sections from Donkey Kong Country 3: Dixie Kong's Double Trouble!
List of Lazy Landlubbers