I was wondering what you would do to improve the game, and you surpassed expectations. I do think, however, that the both you and the towers level up a bit too quickly. Unlocking new things is a lot of fun and it should be spread out more.
I can't type fast enough to do particularly well here in any case, but the games vocabulary needs to be seriously expanded. I'm averaging one word unknown about every other game.
Thanks for the feedback :) The UI is now fixed with all menus visible !!