The controls were very smooth and juicy!! I was presently surprised while playing. Everything just kind of felt right. I like your stat system though I could not tell if I was starting over with each wave or if my stats stayed with me. Like if I got a health boost power up in Wave 2 but picked a different power up during wave 3 would my health boost still be there? Very nice game! I got to Wave 5 I believe. How many waves are there?