Top Descriptors symmetrical Employs symmetry within the map design, often mirroring elements along the horizontal centreline. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , flow aim Patterns with fully continuous cursor movement, usually due to a combination of wide angles and little time between objects. , tournament custom A custom map for a playing tournament. , collab A map with two or more associated mappers. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , improvisation Uses patterns that do not correspond to sounds in the music, often using hitsounds to add sounds in. , difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay.