There are four blast lines, usually referred to as "bottom"/"lower", "left", "right", and "upper"/"higher" (alternatively, "north"/"south"/"east"/"west"). The bottom blast line can also be referred as the "pit" and the upper blast line can also be referred as the "ceiling." Brawl displays diagonal-pointing explosions if a character is KO'd in a corner (which sometimes stops them from being Star/Screen KO'd instead), but this is only to improve the explosions' visibility.