Addicting little game but only for a while.
If you just kept those mines coming more and more, in stead of making it on time it would be far more challenging.
When you shoot the mines they could explode more and make some bubbles or something in stead of them just kinda breaking apart.
The explosion sound was a little too weak.
if you missed 1 mine or more it could have a kind of consequense in the end (like a little movie with a ship colliding with the mines and explode or something) If it had some of these things i guess it would be alot more interesting to play.