Have you ever wanted to be a miner of gems, but was too afraid to get black lung disease? Well this is the way you can experience the excitement of underground play without the debilitating disease. You're operating a mining cart and the objective is to get each gem to the exit without it being destroyed. Lava, spikes, etc. can and will destroy the gems so you must be careful. Use the arrow keys to maneuver the gem throughout each stage. The stages will get progressively harder as you move along.