Top Descriptors collab A map with two or more associated mappers. , progression Contains a gradual advancement in difficulty or concept across the map. , 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. , slidershapes Uses a large variety of slider designs. , chaotic Unpredictable map design, often testing unusual skillsets. , improvisation Uses patterns that do not correspond to sounds in the music, often using hitsounds to add sounds in. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , simple Accessible and straightforward map design. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less.