Jennika has retained her blue eyes but very little else remains of former human appearance. Anatomically, she has three fingers on each hand and two toes on each foot just like the other turtles, and her skin is pale green. This makes her appear physically much like the other turtles, with few or no visible secondary sex characteristics that would reveal her gender by appearance alone.

Jenny usually wears an outfit similar to what she wore as Splinter's human chunin in the Foot Clan.