This is a cool, unique concept for a clicker game, and it makes for an interesting spin on the genre. I feel like a lot of original art has gone into this which is impressive. I also like how sounds and background music has been added as well.
It took me a little while to understand where and what the upgrades are. I would be nice to have them more visual/ obvious. I'm still not sure what the 'Fire' button does at the bottom of the screen.
Nevertheless, this was fun to play! Nice work.