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. , playfield constraint Restricts object placement to a certain part of the playfield. , gimmick Focused on a single unique design or gameplay idea. , marathon A map with a drain time of over 5 minutes. , cutstreams Streams in which the spacing of certain notes is much larger than the rest of the stream. , 2B Includes gameplay elements with two or more objects placed simultaneously. The term originates from a Chinese transliteration of 'idiot'. , large circles Uses larger-than-usual circles. Typically refers to maps with circle sizes below 3. , visually dense Contains patterns where the amount of visible notes makes determining note order and/or timing difficult. , reading Tests a player's reading skill, i.e. patterns that obfuscate note order and/or timing.