Chunli Xi  

After receiving her M.O. Operation, Xi gained the powers and abilities of the Flamboyant Cuttlefish, making her able regrow missing limbs and to rapidly alter her skin color at will making her practically invisible. However, her ability doesnt apply to her attire, so she fights completely nude. The only time she doesnt do so is when she fight against Keiji, whose vision lets him see her clearly. She is also an expert martial artist.