Top Descriptors difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , linear aim Patterns, usually jumps, that require the player to move continuously in a straight or nearly straight line. , megacollab A map with 8 or more associated mappers. , collab A map with two or more associated mappers. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , 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. , wide aim Patterns, usually jumps, with heavy use of wide angle movement.