A game with a cool concept and Game Boy-style graphics. As for the drawbacks, I'd like to point out the ear-damaging sound of digging (it would be great to have volume control). It would also be nice to add a bit of progression with each level, so the difficulty increases gradually (maybe requiring more digging or introducing more lethal cells), as it seems to be randomly generated now. The screen is quite small too; it could be made larger. Very commendable for a first effort!