When a fighter is hit by certain attacks, the background flashes blue, and if there are only two players on screen, the action momentarily freezes, and the camera zooms in on the point of impact. This slowdown effect only lasts for about half a second and is usually accompanied by the sound effect previously only used by Little Mac's KO Uppercut in Super Smash Bros. 4. KO Uppercut, which previously had its own slowdown effect, now uses Special Zoom, as does Cloud's Limit Break. During a Special Zoom, camera control is disabled.
Most attacks that trigger Special Zoom have conditions that need to be met, such as Ridley's Skewer needing to be sweetspotted, or Little Mac's smash attacks requiring his armor to be triggered during the start-up. Certain items and stage hazards may also trigger this effect, similarly requiring special conditions in some cases.
Similar to Special Zoom is Finish Zoom or Final Zoom, terms also coined by Sakurai and his team. Finish Zoom is used when an attack will likely result in a game-winning KO. Like the Deadly Blow mechanic introduced in Super Smash Bros. 4, this effect does not factor in DI being used to make an otherwise-deadly blow survivable. Like Special Zoom, Finish Zoom zooms in on the point of impact and briefly slows down time. However, Finish Zoom uses a red background instead of a blue one, and the sound is always the same. The sound used is also different again, being akin to a ping hit combined with the sound of slashing swords.
List of attacks that trigger Special Zoom
By assist trophy
By stage hazard
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