Top Descriptors featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , tournament custom A custom map for a playing tournament. , collab A map with two or more associated mappers. , marathon A map with a drain time of over 5 minutes. , freeform An unrestrained and loose approach towards visual structure. , messy Visually chaotic and intentionally disorganised patterns, often involving many overlaps and unequal visual spacing between objects. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , multi-song Contains multiple songs within the audio. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less.