The user can perform a burst of speed that allows the user to move so fast it appears as if they have teleported (in some cases, the user actually does teleport short distances), many users can sustain only short dashes. In most cases the user is able to maneuver at the high speeds accurately and does not cause any shock or disturbance to the surface they step on.
This technique is commonly used to dodge projectiles, move behind enemies, show off speed, get away from a fight, etc.
Afterimage Creation: The user moves fast enough to leave an afterimage of themselves making it appear as if there are multiple of him or herself. The copies may appear stationary or be capable of taking action.
Air Dashing: The user moves with enough momentum and leg strength to dash through midair.
Double Jump: Applying enough leg strength to jump off ground level and flash-stepping in the air.
It is possible, but unlikely, that the quick movements and the quick stops put a strain on the user's body, breaking bones, destroying internal organs, or the air pushing against their chest could cause respiratory arrest. The speed moving could theoretically flay both skin and muscle from the bone.
...to the point her opponents don't even realize that they're already dead.
Tohru (Miss Kobayashi's Dragon Maid) catches up to a purse snatcher in mere seconds.
Nicknamed the Yellow Flash, Minato Namikaze (Naruto) was often regarded as the fastest shinobi alive due to his godly speed.
Sasuke Uchiha (Naruto)
Kakuzu (Naruto) using his variant of the Body Flicker Technique.
Itachi Uchiha (Naruto) using his variant of the Body Flicker Technique.
Fourth Raikage Ay/A (Naruto) using his Lightning Style Armor to drastically increase his speed and reflexes, creating an afterimage while slipping away from a point-blank Amaterasu.
Hiruko (Naruto Shippūden the Movie: The Will of Fire) using Swift Release to move with instantaneous speed.
Shisui Uchiha (Naruto) was infamous for his skill with the Body Flicker Technique.
Kū (Boruto: Naruto Next Generations) moving at a high-level speed as if he has teleported, easily pinning down Boruto.
Kuro (One Piece) can use Shakushi, to move at disappearing speeds while using his claws to attack.
Those who master the Six Powers/Rokushiki - Soru/Shave technique (One Piece) seem to disappear when in reality they are actually kicking the ground over 10 times in less than a second. This leg strength allows them to dash at very high speeds.
Increasing his blood flow with his Gear Second, Monkey D. Luffy's (One Piece) can use the Six Powers/Rokushiki technique, Soru/Shave with tremendous mastery...
...and while using Gear Fourth - Bounceman,...
...he can move at the supersonic speed that surpasses Gear Second...
...going even further with his Snakeman, which focuses on speed.
Thanks to the power of Paw Paw Fruit/Nikyu Nikyu no Mi, Bartholomew Kuma (One Piece) can propel himself at instantaneous speeds.
With his powerful leg strength, Sanji (One Piece)can move at tremendous speeds to the extent where skilled opponents cannot perceive him.
Hody Jones (One Piece) moving at bursts of disappearing speed due to overdosing on Energy Steroids, leaving afterimages in his wake.