Top Descriptors alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , sharp aim Patterns with heavy use of sharp angle movement, either between circles or into sliders. , high sv Features prominent high slider velocity usage as a key part of map design. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less. , freeform An unrestrained and loose approach towards visual structure. , tournament custom A custom map for a playing tournament.