Top Descriptors featured artist Features song(s) composed by artists in osu!’s Featured Artist listing , tournament custom A custom map for a playing tournament. , collab A map with two or more associated mappers. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , messy Visually chaotic and intentionally disorganised patterns, often involving many overlaps and unequal visual spacing between objects. , freeform An unrestrained and loose approach towards visual structure. , aim control Patterns with velocity or direction changes which strongly go against a player's natural movement pattern. , gungathon A map with a drain time of over 10 minutes. , reading Tests a player's reading skill, i.e. patterns that obfuscate note order and/or timing. , grid snap Objects are placed along a square grid, typically using osu!'s in-built grid snap feature.