Top Descriptors collab A map with two or more associated mappers. , mapping contest An entry for a mapping contest. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , storyboard Contains a storyboard that enhances gameplay experience. , tournament custom A custom map for a playing tournament.