I can see this being really fun! The setup you have will get there with just a little more work. As another said, I didn't always seem to be able to kill the archers even when my crosshair was blue and hitting them. But the smash animation was pretty satisfying! And I understand, sometimes you just run out of time :)
I also wished you had used the art pack in the world a little more, like maybe making 3D models out of some of the castle sprites. I think that would have integrated the skele sprites into the world a little more.
(by the way, we ended up having pretty similar ideas! That's so cool!)