Top Descriptors collab A map with two or more associated mappers. , slidershapes Uses a large variety of slider designs. , megacollab A map with 8 or more associated mappers. , chaotic Unpredictable map design, often testing unusual skillsets. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , marathon A map with a drain time of over 5 minutes. , tech Tests uncommon skills. , slider tech Tests uncommon skills involving sliders, such as heavy use of kicksliders or aim on complex slidershapes. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern.