Not a bad game.
Well, it was a good game, but it was very easy. Once you get the rhythm of using the sheild down, it's impossible to lose. Level 30 was like the same as level 25. I would have liked to see a -lot- more enemies coming out. I never had to use the A-bomb. Also, you should make it so that you can't buy more special weapons than you can use. I bought around 20 mines and found that I could only lay like 8. I also bought 10 nukes and found I could only use one. That wasted a lot of money.