Top Descriptors custom skin Utilizes custom skin elements and graphics. , playfield usage Includes deliberate use of the playfield within the map design. , progression Contains a gradual advancement in difficulty or concept across the map. , reading Tests a player's reading skill, i.e. patterns that obfuscate note order and/or timing. , difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay. , wide aim Patterns, usually jumps, with heavy use of wide angle movement. , slidershapes Uses a large variety of slider designs. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , collab A map with two or more associated mappers.