Nice fast paced game
I think the strongest point about this is how well the designs are. You get a great sense of being in an actual video game. The music was also really good and really helped to make it even cooler, which I'm glad. It does fail on some levels because the controls are so hard to get used to. It's simply difficult to keep up with the neverending swarms of enemies who keep on blasting you time after time. The explosions are all cool.
The most sound effect is probably when the gun fires. I like how it shows you the points you get when you damage something like a helicopter. It's hard to tell what you can shoot and what you can't. The all around graphics are simply quite nicely well done. I never played these kinds of games as a kid, but they're sure great.