Spiral Heart Splash (スプイラル ハート スプラッシュ Supairaru Hāto Supurasshu?) is Cure Bloom and Cure Egret's second attack, and is the upgraded form of Twin Stream Splash. It requires the use of the Spiral Rings. It can be compared to the attack Rainbow Storm from Futari wa Pretty Cure, as both attacks require accessory items summoned by a mascot (in this case, two mascots).
It was first used in episode 24 of Futari wa Pretty Cure Splash Star.
Moop and Foop go into the Splash Commune and tap into their powers, giving the girls the Spiral Rings. Cure Bloom and Cure Egret place the rings into the hearts and spin the hearts. They both recite their parts of the incantation, blue and yellow liquid comes from their hands and morphs into a heart. The two send the water to their target, the foe is submerged in a blue and yellow bubble hanging over a liquid heart and is purified.
Cure Egret: 精霊の光よ！命の輝きよ！
Cure Bloom: 希望へ導け二つの心！
Both: プリキュア スプイラル ハート スプラッシュ！
Moop: Tsuki no chikara!
Foop: Kaze no chikara!
Both: Supurasshu Tān!
Cure Egret: Seirei no hikari yo! Inochi no kagayaki yo!
Cure Bloom: Kibō e michibike futasu no kokoro!
Both: Purikyua Supairaru Hāto Supurasshu!
Moop: Power of the Moon!
Foop: Power of the Wind!
Both: Splash Turn!
Cure Egret: O light of the spirits! Glitter of life!
Cure Bloom: Lead our two hearts on the path of hope!
Both: Pretty Cure Spiral Heart Splash!