Top Descriptors marathon A map with a drain time of over 5 minutes. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , slider tech Tests uncommon skills involving sliders, such as heavy use of kicksliders or aim on complex slidershapes. , collab A map with two or more associated mappers. , megacollab A map with 8 or more associated mappers. , tech Tests uncommon skills. , slidershapes Uses a large variety of slider designs. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , chaotic Unpredictable map design, often testing unusual skillsets. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less.