Top Descriptors precision Colloquial term for maps which require fine, precise movement to aim correctly. Typically refers to maps with circle sizes above and including 6. , grid snap Objects are placed along a square grid, typically using osu!'s in-built grid snap feature. , featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , collab A map with two or more associated mappers. , improvisation Uses patterns that do not correspond to sounds in the music, often using hitsounds to add sounds in. , marathon A map with a drain time of over 5 minutes. , repetition Features the use of recognizable identical patterns or gameplay elements. , difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , symmetrical Employs symmetry within the map design, often mirroring elements along the horizontal centreline.