Top Descriptors featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , collab A map with two or more associated mappers. , marathon A map with a drain time of over 5 minutes. , megacollab A map with 8 or more associated mappers. , freeform An unrestrained and loose approach towards visual structure. , slidershapes Uses a large variety of slider designs. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , mapping contest An entry for a mapping contest. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , chaotic Unpredictable map design, often testing unusual skillsets.