Speedfighting is a style of speedrunning, though not an official Compet-N category. The object is to finish a level under par with the highest possible KILLS percentage. Separate categories are maintained for Ultra-Violence and Nightmare!. According to the Compet-N site, this style was invented by Ralf Schreivogel and Arno Slagboom. It was first used for a demo competition at Public DANG.