Top Descriptors linear aim Patterns, usually jumps, that require the player to move continuously in a straight or nearly straight line. , difficulty spike Contains a sudden and significant increase in challenge within the map's gameplay. , grid snap Objects are placed along a square grid, typically using osu!'s in-built grid snap feature. , bursts Patterns requiring continuous movement and alternating, typically 9 notes or less. , geometric Incorporates geometric shapes within the map's visual design. , collab A map with two or more associated mappers. , variable timing Contains multiple timing points, usually required for songs not recorded to a metronome. , alt Colloquial term for maps which use rhythms that encourage the player to alternate notes. Typically distinct from burst or stream maps. , megacollab A map with 8 or more associated mappers. , multi-song Contains multiple songs within the audio.