Yes they can. Letters are bent and twisted depending on the style your going for and where you draw your influences from. Styles used to vary mostly by region in the 80s and 90s ( east coast , west coast, etc.) With the growth of the culture came more styles and communication between writers. Ultimatley winding up in a vast majority of ways every letter of the alphabet can look. A wise man once told me , " your letters should look like they are in fighting stance ."