Spiral Star Splash (スパイラルスタースプラッシュ Supairaru Sutā Supurasshu?) is Cure Bright and Cure Windy's signature attack, and can be considered the upgraded form of Spiral Heart Splash. It requires the use of the new versions of the Spiral Rings.
Moop and Foop go into the Splash Commune and tap into their powers, giving the girls the Spiral Rings. Cure Bright and Cure Windy place the rings into the stars and spin the stars. They both recite their parts of the incantation, pink and green liquid comes from their hands and morphs into a star. The two send the water to their target, the foe is submerged in a pink and green bubble hanging over a liquid star and is purified.
In the Pretty Cure Splash Star movie Futari wa Pretty Cure Splash☆Star Tick Tack Kiki Ippatsu!, Saki and Mai as Cure Bright and Cure Windy respectively have temporarily gained power from the Eternal Clock to defeat Sirloin with an Zodiac version of the Spiral Star Splash.
Cure Windy: 精霊の光よ！命の輝きよ！
Cure Bright: 希望へ導け二つの心！
Moop: Tsuki no chikara!
Foop: Kaze no chikara!
Both: Supurasshu Tān!
Cure Windy: Seirei no hikari yo! Inochi no kagayaki yo!
Cure Bright: Kibō e michibike futatsu no kokoro!
Both: Purikyua Supairaru Sutā Supurasshu!
Mupu: Power of the Moon!
Fupu: Power of the Wind!
Both: Splash Turn!
Cure Windy: O spirits of light! Glitter of life!
Cure Bright: Lead these two hearts on the path of hope!
Both: Pretty Cure Spiral Star Splash!