Top Descriptors alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , freeform An unrestrained and loose approach towards visual structure. , marathon A map with a drain time of over 5 minutes. , large circles Uses larger-than-usual circles. Typically refers to maps with circle sizes below 3. , repetition Features the use of recognizable identical patterns or gameplay elements. , collab A map with two or more associated mappers. , chaotic Unpredictable map design, often testing unusual skillsets. , storyboard Contains a storyboard that enhances gameplay experience. , progression Contains a gradual advancement in difficulty or concept across the map. , high contrast Uses flashy ideas to follow changes in the music, creating stark differences between different sections of the song.