Dorrie

Dorrie is a blue aquatic creature that appears in Hazy Maze Cave in Super Mario 64. They are a large creature similar to the Loch Ness Monster legend with 4 blue fins, a blue body, and a tall neck leading up to a head. The back side of the neck is blue, but the front is white, and the white stripe goes down to the bottom of Dorrie's body. Their head is blue with black eyes and a pink tongue.

The player finds Dorrie in the water portion of Hazy Maze Cave. The player can climb onto their back and ground pound them to make them lower their head. This is used to reach Cavern of the Metal Cap and the island in the middle of the area holding a star.

Don't Become His Lunch.
Found in the area of Hazy Maze Cave containing Dorrie is a sign. It seems to be a regular sign but at the end it says "Don't become his lunch." referring to Dorrie. Seeing as Dorrie never attacks the player, several people have found this sign strange.

Mother Dorrie
Main Article: Mother Dorrie

Mother Dorrie is an entity similar to Dorrie that can appear in Dorrie's place. It is described as a black dorrie with sharp teeth. It will charge towards the player and send them to a game over screen, no matter the amount of lives the player had beforehand.

Siren Of Hazy Maze Cave
Main Article: Siren of Hazy Maze Cave

The entity known as the Siren of Hazy Maze Cave's most common disguise is a green Dorrie. Why is unclear.