Princess

Princess is a dramatic mutant that lives in a series of air vents nestled against the Papu Tree's roots with Dennis. Though she is never visible, Kai hears her voice carrying from her pipe frequently throughout the game. Princess is a prima donna personality-wise, frequently scolding Dennis for not spending more time with her and staunchly refusing to leave the comforts of her pipe.

She refuses to talk with anyone except Dennis and Russell, the latter of which being the giant tardigrade-like mutant that spends time in the upper cavern.