These rotating spike bars look like they'd shred Epona's feet in no time, but as you can tell by the picture, she can walk across them without triggering any damage flashes at all. This is true for nearly all attacks directed at Epona's feet and lower legs: almost none trigger a damage flash. This means that if Epona had a working health meter, her feet would sustain little to no damage. This makes sense when you think about it, considering how hard and tough her hooves are compared to the rest of her body. Of course, in real life, this would still hurt your feet pretty badly, hooves or not, so don't try this at home, kiddies. (Wondering why the spike bars are so low to the ground? It's because I haven't yet figured out how to change their z-coordinate to make them higher. Eheheh.)