Eww!
Dude, seriously, work on it.
The mouse - you need to press in the bottom left corner. Whats up with that? Anyway fix that.
The controls - If you need left+down, or 2 buttons, you do a moonwalk or something!
Sound, you need some sound. It will make it 100% better. Then I will score to save it.
The hittest - I didn't even go near the bomb and it said I lost! What?
The size - Its small, I dont like it small. :(
Thats all I have to say, do all of my above and youll get a nice game I think!
Great idea, sloppy coding. Sorry!