Hey there SmokeAndMirrors,
your game looks nice! But there is one thing, many game developers forget: color blindness!
I myself suffer from a minor color blindness and even though I can make out the difference between the bomb ond non-bomb fields, it isn't that clear on the first look.
So since there are many people out there with the same problem you should consider changing your fields color or insert a little bomb image or whatever.
Here is a little article about color blindness and computer games, that show that even big game corporations make the mistake and need to be aware of this problem!
So don't loose potential customers, just because of this
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)