Top Descriptors aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , clean Visually uncluttered and organised patterns, often involving few overlaps and equal visual spacing between objects. , chaotic Unpredictable map design, often testing unusual skillsets. , marathon A map with a drain time of over 5 minutes. , jump aim Focuses heavily on jumps, i.e. circles spaced far apart that require the player to move towards, slow down to hit, then speed up to move towards the next object. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , accelerating bpm Features progressively increasing tempo. , 2B Includes gameplay elements with two or more objects placed simultaneously. The term originates from a Chinese transliteration of 'idiot'. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps.