Whose idea was it to give the thing dumb feelers anyway? I mean, you know they're ugly, you didn't include them for the shadow variant by the looks of it. I'm of course talking about the cosmetic feature that comes with the Disintegration Ray upgrade.
Why not just make the ears flip around and face forward?
http://imgs.steps.dragoart.com/how-to-draw-a-cartoon-cat-step-4_1_000000...
The little tufts of fur seem like they'd be a nice touch. With the other upgrades, you could turn the furball into a Wolver of sorts.
This post is lookin' pretty ugly too.