The Amok (アモクマ Amokuma ) penguin is seen only in Samus & Joey: Volume 2. It is a top-predator on the planet Degrade and feeds on Giants. They look innocent until spotting prey, when they open their wide eyes and reveal a smiling set of razor-teeth. Amok travel at high speeds when on their belly, and are able to fire beam attacks from their mouths.
"The "Amok" penguins inhabit the planet Degrade. They communicate with their friends using special sound waves. Amoks jet through the air and glide on snow, but not on rugged terrain."
- The species' name in Japanese, pronounced "Amokuma", was based on the English phrase "amok mouth".