Nightmare font is a simple attempt to convey the essence of a handwritten font with strong lines. In a real handwritten font, you would find more variation in line thickness, curves, and other design elements that contribute to the overall style. Creating a visual representation of a handwritten font using lines can be a bit challenging in plain text, but I'll provide a simple ASCII representation that may give you an idea of a strong handwritten style. Keep in mind that this is a very basic representation, and actual fonts would have much more detail and nuances.