A very cool tower defense concept with your own unit! I really enjoyed the sound effects and the overall combat felt very satisfying.
Just my feedback and potential ideas:
- think that the drop pick zones could be more interesting if the player is just using their mouse and has a map where they choose what to do. Then you could make it a conquering game along with the tower defnese mechanics you have
- the main menu parts could use a hover effect so the player knows where they are currently interacting. Alos can you slightly shift the robot lower. Currently on my screen when I open the game his visor is right under the "Exit" button and it seems like I am hovering over the exit button :)
Very cool entry and well done on your work!