Minecraft Story Mode:Prismarine Creeper

Prismarine Creepers were a scrapped version of the Creeper in Minecraft: Story Mode. They were most likely meant to come from the Heckmouth in the episode "Hero in Residence". Instead, Charged Creepers are used.

Appearance
Their design is similar to that of the Prismarine Foes, standing at around 3 blocks tall. They appear to have a beard and glowing red eyes as apposed to the green seen in Prismarine Foes.

Trivia

 * Prismarine Creepers are the only scrapped mob known to still be in the game files.
 * The design took inspiration from Cthulhu.