Barf Bag is a nice, friendly and caring person. She is seen to be caring for other contestants. Despite her brain being placed in her vomit, Barf Bag also appears to be rather smart, as she used scientific proof to try to convince Lollipop that she isn’t stupid. However, despite her general kindness to others, Barf Bag gets easily upset when others. Having some liquid inside of her seems critical for brain function. Without it, she'll get woozy, and eventually pass out.