Top Descriptors 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. , collab A map with two or more associated mappers. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , time signatures Audio contains many changes in time signature or uses an uncommon time signature. , messy Visually chaotic and intentionally disorganised patterns, often involving many overlaps and unequal visual spacing between objects. , chaotic Unpredictable map design, often testing unusual skillsets. , circle only Restricts object choice to circles only. , slidershapes Uses a large variety of slider designs. , multi-song Contains multiple songs within the audio.