Awesome game! Reminds me of game I used to play called the Typing of the Dead. I did encounter a few bugs though. One enemy type does not clear out after it dies, covering the letter it was on. I had to guess my way past him. Also, I believe I had a level that did not have an exit. I must have lapped around 3 or 4 times before giving up. I had a lot of fun playing it otherwise.