too awesome game
Cool game, but is very short!
There are a few reasons your game didn't get 5 stars.
The last boss for earth is fine, and a bit humorous, perhaps model his tank after a M1A# Abrams for a little extra intimidation. maybe with an active 50 cal. as well that ignores the walls.
Another planet after earth with better tech would be nice, that way you can go crazy with the final boss.
I ended the game with over 15,000 credits and I was selling units just to repair the walls then re purchasing the same one and re-upgrading it.
A bit of balance work would be a good thing as well. The game is easy if you intentionally lose the second level on the last boss so you can upgrade, then on the 3rd run save at least 4k so you can start the earth with an acceptable defense.
I would buy the ost for this game
some towers are useless -> need rebalance
endgame is really easy. Last boss only destroyed one of my walls
I didnt like last boss. I was expecting something less patriotic, more surprising, more "last boss"