Minecraft Dungeons:Baby Ghast

The Baby Ghast is a pet mob $$ obtained through the Flames of the Nether DLC. It is purely cosmetic and does not attack enemies, nor do any enemies target it.

Appearance
The Baby Ghast is a juvenile form of the ghast. They are characterized by having small white translucent bodies with a red core inside, a small mouth, red eyes, and small tentacles, making its appearance akin to a jellyfish. The whole body of the Baby Ghast is smaller and almost the size of the player's head.

Trivia

 * The Baby Ghast is currently the only pet that is based on a hostile mob.