"Now the REAL FIGHT BEGINS!"
Using all of his power, as well as the power he has gained from others, Goku delivers a powerful punch to his enemy.
Goku uses this attack at the very end of his battle against Broly, in order to defeat the Legendary Super Saiyan. After gathering energy from Piccolo, Gohan, Future Trunks, and Vegeta, Goku returns to his full power and delivers a heavy punch to Broly's abdomen, launching the Legendary Super Saiyan into the path of Comet Camori and causing his body to crack and his energy to explode outwards, wounding him to such an extent that he fell into a seven-year coma after crash-landing on Earth.
In Bardock - The Father of Goku, the captain of Team Dodoria uses a very similar technique on his comrade (unintentionally). While landing multiple heavy blows on Bardock (who is held in a Full-Nelson by the captain's comrade), he prepares a powerful one aimed at Bardock's gut, who counters by flipping in midair, causing the captain to punch straight through his comrade's armor (and into his body) instead and was finished off at once by Bardock's Flip Shoot.
In Dragon Ball GT, Super Saiyan 4 Goku uses a similar attack to seriously injure Eis Shenron before destroying him with his Dragon Fist, because the Shadow Dragon used an extremely cowardly blinding strike against him.
Video Game Appearances
As part of the Broly Pack DLC in Dragon Ball FighterZ, Miracle Blow makes a cameo appearance as part of a Dramatic Finish. If Super Saiyan Goku KO's Broly as the final opponent on the Space stage with a Neutral Heavy Attack, then a reenactment of the climax of Broly - The Legendary Super Saiyan will occur where SSJ Goku defeats Broly with Miracle Blow. After knocking Broly back Goku stands glaring at Broly who starts to sweat and shows a brief tinge of fear before angrily charging at Goku who charges at Broly as well. Broly lands a punch but it just grazes Goku's cheek who hits him with Miracle Blow causing Broly to shout "Impossible!" as he explodes like in the film. The only difference visually is Goku's Gi is not torn off.
- In the uncut version of Dragon Ball Z: Super Android 13!, Goku, when using his Spirit Bomb Super Saiyan form, utilized a similar attack on the titular villain to finish him off.