Pretty Cure, Rainbow Power!

Pretty Cure, Rainbow Power! (プリキュア、レインボーパワー！Purikyua, Reinbō Pawā!) is the official transformation phrase used by the Cures from the Rainbow Pretty Cure Trilogy. To activate their transformations, the girls require their Rainbow Pens.

List of Sequences & First Appearances
Cure Rose --> Episode 1 Cure Arancia --> Episode 2 Cure Rose & Cure Arancia --> Episode 3 Cure Jaune --> Episode 3 Cure Rose, Cure Arancia & Cure Jaune --> Episode 4

Lucia to Cure Rose
In Destinies Unfold, Lucia holds up her hand as a stream of pink hearts swirls around it, alighting on her fingernails and turning them pink. Her Rainbow Pen appears spinning, and as she takes hold of it the Pink Rainbow symbol on the top begins to spin. She then turns around as streamers of pink hearts emitted from the pen, which finally coalesced into several rings around her body. The rings contracted and became the various pieces of her outfit, and as her forehead tiara appears, her hair begins to glow, then grows longer and changes colour. She then strikes a pose, which causes the pen to appear on her waist with a bag. She then flies down from the sky and lands on her feet, and says her introduction before striking her final pose.

Mahiru to Cure Arancia
In Destinies Unfold, Mahiru holds up her hand as a stream of orange hearts swirls around it, alighting on her fingernails and turning them orange. Her Rainbow Pen appears spinning, and as she takes hold of it the Orange Rainbow symbol on the top begins to spin. Mahiru holds the pen in the air as long banners of orange hearts emitted from it and swirled around her body, eventually forming a spiral. The hearts sank into the ground, but then rushed upwards again, completely covering Mahiru's body and creating her outfit. As her forehead tiara appears, her hair begins to glow, then grows longer and changes colour. She then strikes a pose, which causes the pen to appear on her waist with a bag. She then flies down from the sky and lands on her feet, and says her introduction before striking her final pose.

Kei to Cure Jaune
In Destinies Unfold, Kei holds up her hand as a stream of yellow hearts swirls around it, alighting on her fingernails and turning them yellow. Her Rainbow Pen appears spinning, and as she takes hold of it the Yellow Rainbow symbol on the top begins to spin. She then swept the pen over her head and around her body while a stream of yellow hearts emitted from it, forming her leotard, gloves, and shoes. A sparkling star expanded over her body and a small burst of mist formed the rest of her outfit. As her forehead tiara appears, her hair begins to glow, then grows longer and changes colour. She then strikes a pose, which causes the pen to appear on her waist with a bag. She then flies down from the sky and lands on her feet, and says her introduction before striking her final pose.

Group
In Destinies Unfold, the three Cures hold up their hands as streams of pink, orange and yellow hearts swirl around them, alighting on their fingernails and turning them into a different colour. Their Rainbow Pens appear spinning, and as they take hold of it the Pink, Orange and Yellow Rainbow symbols on the top each begin to spin. Lucia turns around as streamers of pink hearts emitted from the pen, which finally coalesced into several rings around her body. The rings contracted and became the various pieces of her outfit. Mahiru holds the pen in the air as long banners of orange hearts emitted from it and swirled around her body, eventually forming a spiral. The hearts sank into the ground, but then rushed upwards again, completely covering Mahiru's body and creating her outfit. Kei sweeps the pen over her head and around her body while a stream of yellow hearts emitted from it, forming her leotard, gloves, and shoes. A sparkling star expanded over her body and a small burst of mist formed the rest of her outfit. Their forehead tiaras appears as their hair begin to glow, then grow longer and change colour. They then strike a pose, which cause the pens to appear on their waists with bags. They then fly down from the sky and land on their feet, and say their introductions before striking their final poses.

Japanese
All: プリキュア、レインボーパワー！ Cure Rose: ピンクの虹は愛の証！キュアローズ！ Cure Arancia: オレンジの虹は情熱の証！キュアアランシア！ Cure Jaune: 黄色い虹は平和の証！キュアヤウン！ All: 未来を描く虹色の輝く色！ All: レインボープリキュア！

Romanization
All: Purikyua, Reinbō Pawā! Cure Rose: ''Pinku no niji wa ai no akashi! Kyua Rōzu!'' Cure Arancia: ''Orenji no niji wa jōnetsu no akashi! Kyua Aranshia!'' Cure Jaune: ''Kiiroi niji wa heiwa no akashi! Kyua Yaun!'' All: Mirai o kaku nijiiro no kagayaku iro! All: Reinbō Purikyua!

Translation
All: Pretty Cure, Rainbow Power! Cure Rose: The pink rainbow is the proof of love! Cure Rose! Cure Arancia: The orange rainbow is the proof of passion! Cure Arancia! Cure Jaune: The yellow rainbow is the proof of peace! Cure Jaune! All: The shining colours of the rainbow that paint the future! All: Rainbow Pretty Cure!