Cyan is, as her name describes, a cyan monster, with a body reminiscent of the Diplocaulus. Cyan has no arms with the head shape of an arch. Her eyes resemble that of Orange. Unlike all other Rainbow Friends, she doesn't have any arms.
Mechanic

Cyan roams around like the other Rainbow Friends. Cyan will notice any players that come near, and when so, she will chase and attempt to kill them. If you move in a box near her, she will sniff you. If you move during this time, she will chase you