Murtles are sea turtle-like Nightmarens that only appeared in Crystal Castle in NiGHTS: Journey of Dreams. They can shapeshift into a smaller version of NiGHTS and mimic his drill dash or into treasure chests, if NiGHTS comes in contact with them when they are disguised, they will explode and turn back into their real form.
Murtles resembles sea turtles, they have green head and blue and purple flippers, their shells are yellow and blue and appears to resemble a mirror.
- Murtles shares a few similarities with Verols from the first game, they are both reptile-like nightmarens with the ability to shapeshift.
- It's name is probably a combination of the words "mirror" and "turtle".