Taking place in a damp and dark pipeline, the primates will begin the stage underwater. They will have to swim through the bleak pipeline through the first half of the stage, possibly meeting some dead-ends. As they swim through this area, they will encounter the enemies, Lurchins, Bounty Basses, and Kocos. In the second half of the stage, the primates will begin to explore the dry areas of the stage. There, they will be able to turn into Squawks the Parrot and fly through a short maze of pipes. As the bird makes his way around the twists and turns of the stage, he will encounter the normal enemies such as Buzzes, Kobbles and Krimps.
- This stage is named after the fable The Ugly Duckling.
|Donkey Kong Land III stages|
|Cape Codswallop||Red Wharf • Seabed Shanty • Ford Knocks • Total Rekoil • Koco Channel • Liftshaft Lottery • Barbos Bastion|
|Primate Plains||Coral Quarrel • Minky Mischief • Jetty Jitters • Black Ice Blitz • Riverbank Riot • Miller Instinct • Bleak Magic|
|Blackforest Plateau||Rocketeer Rally • Vertigo Verge • Polar Pitfalls • Surface Tension • Tundra Blunda • Redwood Rampage • Arich Attck|
|Great Ape Lakes||Jungle Jeopardy • Footloose Falls • Deep Reef Grief • Karbine Kaos • Simian Shimmy • Rockface Chase • Krazy KAOS|
|Tin Can Valley||Tropical Tightropes • Clifftop Critters • Rickety Rapids • Bazuka Bombard • Ugly Ducting • Stalagmite Frights • K. Rool Duel|
|The Lost World||Whiplash Dash • Kuchuka Karnage • Haunted Hollows • Rainforest Rumble • Barrel Boulevard • Ghoulish Grotto • K. Rool's Last Stand|