Spin Transform Shuriken Ball (回転変身シュリケンボール Kaiten Henshin Shuriken Bōru) is an item used by Sky Ninja Shurikenger, normally thrown at a person to copy their appearance. He would shout "Tenkuu, Shinobi Change!" (天空・シノビチェンジ！ Tenkū Shinobi Chenji!) to return to his true form, often surprising those around him. Within the Shuriken Ball is Shurikenger's personal Shinobi Medal. It is also placed in a slot while Shurikenger is in Tenkuujin and is used to transform it into its Karakuri Giant form with the command of "Flight Transform!"