Sad Paragoomba's are normal Paragoomba's that have been infused with the Vibe Ceptor in the DS game, Super Princess Peach. They spend their time flying above the ground crying. The Sad Paragoomba will fly above the ground following a set pattern, unlike their normal counterparts, Paragoombas. Who fly abnormally.
The Mad Paragoomba is the opposite of the Sad Paragoomba. It's red, and is very angry and dangerous.