I found this to be a really cool game. What turned me on the most about it was how well the graphics were. I got a true sense of uniqueness. I will say that it does get a little repetitive. It could also use some more music. It reminds me of similar games, only easier. It's still good.
I just liked how you had a lot of mobility. There was really a precise way of understanding everything and you got a clear shot of it. I think you had to shoot the big machines right in the middle to kill them. I don't think shooting the lower parts did anything. The bombs are cool too.