Ruby

Ruby is a female contestant in Battle for Dream Island Again, IDFB, and Battle for BFB. She is hyperactive, curious and dim-witted. She enjoys playing around with other contestants, notably Bubble and Flower. She has also been shown to look up to characters with leadership roles such as Match and Pencil, although she can display these traits on her own quite well, as seen in "Return of the Rocket Ship," and "Don't Dig Straight Down."