In the match between Raimon and Mikage Sennou[1], Endou and Gouenji first used it to counter Patriot Shoot, surprising Takeshi with its sheer power and successfully scoring Raimon's first goal. Endou would later note[2] Inazuma 1gou was already written in Daisuke's notebook, which was described as a hissatsu technique that combined both the goalkeeper and forward's powers into a shot.
Two users run in sync side by side and quickly spin to the ball, switching places in the process. As both volley the ball, they charge it with yellow lighting, heading it towards the ball.