Ewww, educational!
Although it is a typing game, it has a sense of action to it, and has the potential to get quite addictive. But that is what you have failed at, my friend. This game is not addictive because the bomb drops do not speed up very quickly at all. Heck, I don't even know if they speed up at all. It seems I spend most of my time just staring waiting for a bomb to fall, and not once did I see more than 2 bombs on the screen at one time. A great design and put together well, the difficulty is just too low. Also, button mashers might not find this very hard either. Maybe you should give a penalty for the wrong button. Great effort, 6/10 ;)