While trying to find a way to ruin Kuzco forever, Yzma discovers that Kuzco never fulfilled his Kuzcogarten requirement and has him sent back to take it again. But she still needs to find a way to cause him to fail, so she uses a potion to transform herself into a little girl so that she can convince the other kids to help her. Her plan ends up wreaking havoc on herself in the end though when Kuzco turns out to be great at Kuzcogarten.
Evil and Eviler:
After realizing that all of her past attempts at failing Kuzco have failed themselves, Yzma hires an Emperor Exterminator named Miss Ni to get rid of Kuzco so that she can finally be made emporess. But when Miss Ni turns out to actually be more evil than Yzma herself, Yzma tries to find a way to give Miss Ni the boot.