Puplug is a coccoon-shaped creature that is vaguely worm-shaped. Most of its body is black and segmented with 6 segments seperated with faint lines. On one end of its body is a yellow head. The head has two white eyes with large black pupils. It also has a white semicirclular mouth with four teeth. Puplug has two small antennae that radiate with electricity. Puplug has two stubby yellow arms. Like its pre-evolved form, Puplug's tail is a large, yellow, fluid-filled sack with a curly appendage inside. This sack is attached to the main body with three gray bands.
Puplug have no legs, so they are rendered immobile for the most part. The sack on their tail can illuminate to light up dark places.
Puplug are nocturnal creatures that use their light sacks to see at night.
Puplug tend to live in trees.
"Due to having no legs, Puplug is rendered immobile. They use their light sacks to scare away predators."
- Puplug is the fifteenth Meta Monster in the Encyclopedia.
Puplug is based on a coccoon.
Puplug is a combination of pupa and plug.