前転シュート - Zenten shoot - Forward somersault shot
It's an acrobatic shot, using the back of the leg (Captain Tsubasa arc, chapter 94, pages 108-109) or the back of the foot (Road to 2002 arc, chapter 139, pages 15-16) to shoot while performing a forward somersault (Captain Tsubasa arc, chapter 43, pages 36 to 38).

It can just be used as an acrobatic shot (Captain Tsubasa arc, chapter 94, pages 27 to 29).

However, it can also be used if the ball can't be reached, for example with a diving header (Captain Tsubasa arc, chapter 43, page 36), or if the user is in the middle of falling (Road to 2002 arc, chapter 139, pages 1-2). In these particular cases, the user might use his hand on the ground to perform the somersault (Road to 2002 arc, chapter 139, pages 13 to 16).

It was also called 前方回転シュート - Zenpou kaiten shoot - Forward rotation shot (Road to 2002 arc, chapter 139, pages 17-18).
Wakashimazu also used a similar move for defense, calling it たて回転のニールキック - Tate kaiten no wheel kick - High rotation wheel kick, to counter a forward somersault shot (Captain Tsubasa arc, chapter 94, pages 108 to 110).

Players who used it