Hariet

Harriet is one of the Broodals that can be fought in Super Mario Odyssey. In the main story, she is fought in the missions "Inverted Pyramid Showdown" and “Big Broodal Battle” (along with Topper.)

Inverted Pyramid Showdown
In the battle, Harriet is wearing a spike helmet, preventing Mario from jumping on her, and tries to throw bombs at Mario. Mario must use Cappy to reflect the bombs back at her to remove her spike helmet, making her vulnerable to be jumped on.

After being jumped on, Harriet will fly around in a saucer fashion, laughing maniacally, while dropping down many of bombs, which will leave little lava piles after blowing up, before finally landing and resetting the cycle. After her being finished off, she becomes stunned and collapses.

Dark Side Brochure Information
Harriet, Pyrotechnics

It's best not to get her mad.

''The least predictable of the Broodals, Harriet is most often found throwing bombs with her hair. When her homemade bombs explode, they leave a pool of fire on the ground, so try knocking them away before they explode. While it may seem reckless to have filled her hat with bombs, Harriet is devious and keeps a lot of spare explosives with her, so watch out!''

Trivia
Hariet Harriet
 * Along with Topper, they are one of the members of the Broodals who starts panicking after their hat is off.