Gekkoumaru Tsubame Gaeshi (月光丸・燕返し, Gekkōmaru Tsubame Gaeshi, lit. Moonlight Circle Swallow Return) is a shoot hissatsu technique introduced in Inazuma Eleven Orion no Kokuin.
A hissatsu shoot in which 2 sharp kicks are launched from an iainuki-like stance onto a kicking ball, so that the trajectory forms an arc like a crescent moon.
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Nosaka used this technique during the match between Inazuma Japan and Eternal Dancers. With the shot, he managed to break through Alek Akbar's hissatsu technique, Boukyaku no Sonata, scoring the equalizing goal for Inazuma Japan, making the score 2-2.
The user kicks the ball up in the air and crouches with their back towards the now appearing glowing moon. As a harvest-like area surrounds the user, the ball appears and falls down from the moonlight which is aligned with the actual moon. When the ball nears the user, the area goes pitch black and all you can see is one slash across the ball from the users foot. When it lightens up again, the user strikes the ball once again this time with their heel, sending it flying towards the opponents goal, glowing in a yellow moon-like aura.