Before anything else, I'd like to clarify a few things:
1. I've noticed that some people don't understand how to play, so I've updated the game's page to show the controls.
2. In story mode, there are five waves plus one final wave, because I have the feeling that many people don't reach the end.
3. I'm glad you like the game. If you have any questions, feel free to ask.
Thanks for reading.