Sludgepuppies are giant, dark purple, mud-like alien species that can change into human forms.

Sludgepuppy
Universe	Ben 10 Universe
Homeworld	Unknown
Average Height	Varies
Diet	Omnivourous
Sapience Level	Sapient

Their natural conditions are legless and a vague human blob. Females of that race have antennas in their Sludgepuppy form. Sludgepuppies have the ability to stretch their limbs and create their own weapons from their composite mud. Being made a mud-like substances, makes them very weak if exposed to any amount of water in addition to fire. They hate the Plumbers, as there was a very long war against them. One sludgepuppy named Camille and a human named Joel fell in love, and when they got married, it possibly ended the war. The wedding tried to be stopped by a few sludges, but failed. Petrosapien crystals do not hurt them.