Thats some great ideas right here. I wanted to put a crosshair but i didn't think to incorporate it that way.
By the way, what do you think of the actual difficulty, what wave have you reached ?
Made it up to LV 5. It does get hard fast, but I probably just need more practice. Note: There's a good game similar to yours on this site called (Axeplode: Axtreme Edition)
Ok thanks for your feedback, I will check this out.