|Ally||Koopa Troop, Bowser|
|Debut Appearance||Super Mario 3D Land|
|Latest Appearance||New Super Mario Bros. 2|
They could only be found in the Ghost Houses of the game. They are usually found alongside other Boo enemies. They do not attack Mario or Luigi directly, but will move in a set path with other Peepas. They can only be defeated by running into it while the plumbers are using the Starman.
Peepas make their latest appearance in New Super Mario Bros. 2 where they are again encountered in Ghost Houses, and also Haunted Levels. In some areas they form circles similar to Super Mario 3D Land except in 2D fashion, and they also hold up floating platforms. Except for the platform ones if Mario runs into any he will take damage. They can be defeated using the Gold Flower.