Son of Blob is the main antagonist of the same name. When a scientist accidentally brings a frozen sample of the blob ( the father of son of blob), it cause it to have mass hysteria as it eats though its why to towns and cities

Appearance
Son of Blob is a large mass of gelatinous red slime.
Powers and abilities
● ability to squeeze in small spaces
● absorption of prey
Fate
The son of blob is killed after trying to consumed the main protagonist in a Freezer set at warm, which this creature can't handle the cold like his dad. But its later revealed that he survived at the end of the flim and was lasted seen attacking the narrator foot at the post credit screen.