The game idea is really cool and I liked the windup mechanic matching the theme. I thought the time between rounds was too quick and I didn't like having to go back to the computer to buy 1 turret, walk all the way to the front and have to walk all the way back again. It felt like I was rushing around frantically and didn't have much time to enjoy the game. You've done a really good job with the game though and I think its got some real potential. Great work!