Deep down the earth, solve puzzling skill levels in Gem Boom to make a mole rich of gems. Blow up bombs at the exact time needed. For a perfect score, the explosive has to collect along the way the many insect fossils. Plan its route so that they can be gathered, using Mouse alone to remove blocks and also to start the bomb's countdown. It has to explode near the big colored block, which has the gem inside. There isn't any other way to beat the puzzle level that not getting the gem, so don't lose the bomb or reset the level.