The Hadouken is a special attack that originated in Street Fighter, a game played on Nintendo. It is often referred to as a “fireball” due to its appearance, despite few instances of the move actually producing flames.

The basic type of Hadouken is a surging punch in which a fighter’s willpower is utilized to focus energy into and through the palms. As the palms are thrust outwards towards the target, a surging energy wave is expelled that results in a punching force traveling through the air in the opponent’s direction.

So in Hadouken photography people imitate this attack and the results are outstanding.