Let's Pretty Cure! Dual Wave!

'''Let's Pretty Cure! Dual Wave!' (レッツプリキュア！デュアルウェーブ！ Rettsu Purikyua! Dyuaru U~ēbu'') is the official transfromation phrase used by Nijino Katsu to transform into Cure Colour. To activate the transformation, Katsu needs her Rainbow Commune, her Rainbow Cards and her mascot partner, Arcus.

Pretty Cure and Mascot Partners
Cure Colour --- Arcus

List of Sequences and First Appearances
Cure Colour --- Episode One

Sequence
Katsu flips open her Rainbow Commune and she puts her tranformation Rainbow Card in its slot and spins it around. She than shout out "Let's Pretty Cure! Dual Wave!", making a tunnel of rainbow light surround her, which her transformation starts. First, her hair turns magenta and goes into its high ponytail. Her hair accessories than appear, followed by her earrings and gloves. Her bow appears than her dress. Her boots and stocking appear and Cure Colour lands on the ground and does her introduction, than strikes a pose.

Trivia

 * The transformation phrase for Katsu sounds a lot like Futari wa Pretty Cure and its sequel, Futari wa Pretty Cure Max Heart, transformation phrase, Dual Aurora Wave, for Cure Black and Cure White.