Top Descriptors alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , precision Colloquial term for maps which require fine, precise movement to aim correctly. Typically refers to maps with circle sizes above and including 6. , large circles Uses larger-than-usual circles. Typically refers to maps with circle sizes below 3. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern.