Better Than You features Sophie. Below is her challenge statement.
"Augh! I have to get this potion together tonight, and I keep dropping
things. Help me out. I might not turn you into a radish if you do a
good enough job -- I mean, I'll give you a reward. Yeah, that's it."
To beat her you must get 530 points in Sophie's Stew.
Prize is Zombie Flotsam Morphing Potion for
the 500 winners. Additionally, you get a Gold Trophy and 20,000
Neopoints if you are one of the first 10, Silver Trophy and 10,000
Neopoints if you are between the 11th and 50th, and a Bronze Trophy and
3,000 Neopoints if you are between 51st and 500th.