Really cool game! There's a lot of polish in just about every aspect, including graphics, sound design, and controls. I really appreciate the wide variety of options, including difficulty settings and the ability to remap controls. Gameplay wise, the only thing I think is missing is some sort of health indicator for the cat. Especially considering how much HP the cat seems to have, a health indicator would help players better gauge how effective the feather damage is.
Really nice work!