Swampy Ducks are found in Swampy levels. A total of three appear in each level.
A player is not required to collect any Swampy Ducks in order to move onto the next level, however, a certain number of Swampy Ducks are required to unlock future Gates in the various Locations.
Swampy Ducks require five drops of Water to be collected. All other Fluids, except Steam will kill the duck.
While in the Avoid It! challenge mode, the player must avoid all Swampy Ducks and complete the challenge. If one is collected, the Challenge is failed and any succeeding challenges on the same level will remain locked. Note that if a duck is partially filled, the challenge will continue.
While in the Driller challenge mode, the player may have to avoid all Swampy Ducks. If applicable, the same rules from Avoid It! are applied in Driller.
While in the Melody challenge mode, all three Swampy Ducks are replaced with five musical notes. The notes accept and reject the same fluids as Swampy Ducks but also have to be collected in the correct order.
While in the Duck Swap challenge mode, all three Swampy Ducks are replaced with either Allie Ducks or Cranky Ducks. The level is layed out the same except with those duck changes.
While in the Duck Rush challenge mode, six Swampy Ducks are present instead of the customary three. The appearance and fluid acceptance is the same.
While full, Swampy Ducks are yellow with an orange beak, white eyes and yellow-brown outlines.
When empty, the duck is orange with orange-brown outlines and slightly darker eyes.
Swampy Duck is Collected
Swampy Duck is Filled
Swampy Duck is Killed
Unlike Allie and Cranky Ducks, there a few if not any features of Swampy that a shared by the Swampy Duck.
While full, Swampy Ducks are yellow and Cranky Ducks are purple. Yellow and Purple are complementary (opposite) colours, which is fitting since Swampy's and Cranky's personalities are quite "opposite".