Repip is the alien version of the Piper. It is known to be female, but the piper is known as 'it'.
Repip looks like piper, but she has more neck bangles and, instead of red, they are rainbow. She has a tail with a small one eyed head and green skin. Being from mars, she has many legs. She has four teeth instead of two and her forehead eye's iris is red.
She seems to like glow sticks, considering that her girapedia entry states that her neck bangles are really glow sticks. You get her by mutating two Caduceas.
"Repip" is "piper" backwards.