She's a vampire bat pony who is pretty solitary. Most think she's the angry and confrontational type because of how she looks and how she's usually seen scowling to herself. But in reality, Hallows Eve doesn't want to harm anyone. But due to being a vampire bat pony, she still needs to feed on blood (as well as apples) to live and thrive, so she usually seeks to be alone so she doesn't lose control and accidentally hurt someone. To curb this, she's resorted to stealing from apple farms and blood banks. She also loves making Jack-o-lanterns. She loves Nightmare Night but she makes them regardless of the time of year using any type of fruit or vegetable that's suitable to make them: pumpkins, gourds, watermelons, apples, you name it.