This is my favorite game. May I make a small suggestion though, could you please make the background color a bit lighter on the last campaign? I am trying to win everything using a single heavy cannon and support structures but it's just not possible to see the shell when it's so dark. Thanks.
Jebus after 2 days of trying I finally got the badge. the restaurant is located between 1947m and 2237m. Good luck for those trying for the badge, you will need it!
challenge 4 is kinda hard without understanding how it works. Dragon will shoot the nearest bot within its range. Its range does not start from 0 so if you put shield is right next to dragon or very close to it, dragon will not shoot shield. So knowing this, my strategy is to put shield on follow dragon, and move sword just outside the shooting range. Whenever shield is moving behind dragon, and dragon is shooting shield comfortably, I move in sword into the shooting range and move it parallel to dragon until dragon is going to hit a wall, because you know then shield will run too close for dragon to shoot. Repeat this a few times and you will get your badge!