Flash Fist Crush (瞬拳圧殺 Shunken Ensatsu, lit. Killing Pressure Instant Fist) is a variation of the Pressure Point Attack used by Hit utilizing his Time-Skip ability, and Goku in his Ultra Instinct "Omen" form.
To use the attack, Hit assumes a basic fighting stance, and when he uses his Time-Skip, he delivers a soft but incredibly strong blow to the opponent's front, or firing from a distance, inflicting a huge amount of damage. Thanks to traveling through his stored time dimension, the move can also phase through solid objects and be controlled in location to hit in all directions. The killing version of this move is Hit's strongest Time-Skip attack, albeit weak against those who know how to counter the move. Even Goku who's energy sensing is one of the best in the series was not able to sense the this attack when it was first used on him and each time afterwards he's shown having to close his eyes and showcase absolute concentration with his energy sensing and visualization to be able to counter it. The move can also go through solid objects if aiming at a target but can be used to destroy objects. The blast appears invisible to the real world but is visible in Hit's Parallel World. Even when Hit's true body Is in the time storage world he can still use this move from that place to attack someone outside of it. The attack can also be used non-lethally as well if used correctly.
Hit used this attack a number of times in his fight with Goku in the "Future" Trunks Saga when Goku hired Hit to kill him to fight him at full power to improve Goku's skill for the tournament. This move will cause the opponent's heart area to become crushed in by the attack killing them. Goku is killed by this move once, but is brought back to life.
Video Game Appearances
This technique was named in Dragon Ball: Xenoverse 2 where it appears as one of Hit's Super Skills in his Suit 1 skillset. It can also be obtained by the Future Warrior by using the Dragon Balls to summon Shenron and wishing for a new Super Attack for the first time.
The move works as both a counter and an offensive attack. The user will take a defensive stance and if attacked during the stance will throw out their fist and counter, or deliver the punch attack after a certain amount of time has passed. The counter works on both strikes and ki blasts.