I love the creative aspect of the game although I wish it wouldn't just make the weapons for you and you had to put them together from like an inventory or something along that line.
Overall 4/5 for not the best gameplay I've seen
I finished one level by having only puckle guns so when the units walked on screen they would get annihilated by about 7 guns. This is a great game overall, except for the fact that it gets a bit repetitive once you get good defenses then there is just waves of enemies that you already know you will beat. 4/5
I think this game deserves a 4/5 because of the lack of checkpoints during missions. Also, during mission 3 the bombers got past the edge of the mission area and it never ended the game. So I had to just crash or go out of the mission area. :(