There are actually a few creepy things about Daisy in the Mario Bros. universe.

Like in Mario Kart: Double Dash, Daisy has only one phrase, and keeps repeating it throughout the game.

The EyeEdit

There is something you might've missed out on in Super Smash Bros: Melee (Early versions). There is something that can creep you out if you unlock the daisy trophy. If you zoom into the back of her hair until skin shows, you can see something that's clearly not supposed to be there. It may be a modeling error, but what is weird is that it looks nothing like Daisy's other eyes. It's misshapen.

a screenshot of daisys 3rd eye