From the Super Mario Wiki
Super Mario series
Super Mario Bros. 3
In Super Mario Bros. 3, she begins to glow when approached and her kids will "explode" away from her making it harder to swim. More kids appear a few seconds later. Just like normal Bloopers, they follow Mario in an attempt to hurt him.
New Super Mario Bros.
Two Blooper Nannies appear in a bonus room of 3-3 in New Super Mario Bros. This time, they will flash rainbow instead of glowing.
New Super Mario Bros. Wii
New Super Mario Bros. 2
New Super Mario Bros. U
They are one of the few enemies that don´t appear in New Super Luigi U.
Super Mario RPG: Legend of the Seven Stars
The Adventures of Super Mario Bros. 3
Nintendo Adventure Book
In the Nintendo Adventure Book Leaping Lizards, two Blooper Nannies compete in the International Mushroom Games as members of a team known as the Sneaks. What events they participate in besides the Beetlebowl, an all-team game, are unspecified.
Names in other languages