Nice, just a few more little teaks to polish it off and that's all it needed. Sound didn't work for me if it had any, and that would have been a biggy. As others mentioned, the movement is a bit off which makes the characters all glide around as if they are hover crafts. All in all though pretty solid, it was fun, I think either adding health bars or reducing the bugs health so they die faster would help as well. The art was great and the menu was good, honestly our game had a similar "purchasing" mechanic for skills and we tied it to the theme through story, so I don't feel like you were as far off there as you think.