Amidst Endou's training to complete Megaton Head[2], Endou tried using Megaton Head, but kept on using his hands instead of his head as he was using Seigi no Tekken as the basis. In order to prevent Endou from using his hands again, Kidou suggested tying tires around Endou's arms so he could concentrate all of his power on his head. Continuing his training, Endou managed to fully materialize the orange hand through his head, successfully deflecting Goeunji's shot. Seeing this, Kidou suggested Endou to test it against a hissatsu technique, which Endou agreed. After taking off the tires, Endou used it, successfully deflecting Kidou, Gouenji, and Ichinose's Koutei Penguin 2gou and completing Megaton Head. Shortly afterwards, Megane gave the technique its name.
In the match between Raimon and Chaos[3], Endou used it, successfully deflecting Burn's Atomic Flare, blowing him away in the process. Endou used it again[4], quickly getting past Grent and successfully scoring Raimon's seventh goal.
In the match between Orpheus and Team K[8], Endou used it, quickly getting past Indigo and successfully scoring Orpheus' first goal.
Amidst Inazuma Japan's training[9], Endou used Megaton Head G2 to try to score, but it was stopped by Tachimukai's Maou The Hand.
In the match between Erabareta 11nin and Dark Angel[10], Endou used Megaton Head G3, getting past Sein's bodily defense and successfully scoring Erabareta 11nin's second and winning goal.
The user puts their arms in front of their face, quickly reeling them back as an orange orb appears on their forehead and draws in fleeting, white shockwaves. A huge, yellow hand appears behind them, gripped by orange sparks coming from the orange orb, clenching and turning into a fist. They then cross their arms and rapidly reel them back, heading the ball with the fist and covering it with spiky, yellow energy, curving as it heads towards the goal.