Sparkle and Twirl Mermaid Dora transforms from Beach Dora to Mermaid Dora. When girls place Dora into her magic seashell, Dora sings as she spins around and raises her arms as her skirt grows into a mermaids tail. At the end of the transformation Dora will shimmy back and forth during the remainder of the song. Dora can be removed from the base to be played with as Mermaid Dora or Beach Dora. Girls can also hear all of Dora's stories by pressing the Story button on the base .