My god, what an ugly game.
Though I have to admit, you've spent a little more time on this than the average point'n'click.
The game was boring, I have to admit. The repetition of killing the same things over and over in the same manner got boring after the first round. This was peaked up a little by the fact that I could buy better gear, but it was only to kill the bugs in the same fashion.
I do enjoy how you set some motive for killing the bugs, and a scoring system. It beats the "Kill the bugs till you can't be fucked to play anymore" style. So well done on that.
Create a better looking game, higher quality. That could be with either keeping visuals a little more simple or creating new animation cycles for stomping and bugs themselves.
Props on the voices though, they made me laugh.