A very interesting game! The graphics are really good, and the gameplay is very promising. The sound effects are a nice addition and fit the game well.
If I had one suggestion, it would be to provide a bit more guidance about the items you can buy and select on the side. Without any explanation, I found myself just clicking on everything. It would also help to make the final objective a little clearer.
Other than that, it's a great clicker game with a really good concept. Well done!