Use your finger as a pickaxe, dig tunnels and guide the Micro Miners to the Gold, Silver and Coal deposits. Where's my lemmings?
Source: The Publisher Website.
Micro Miners are lemming-like creatures that can dig through coal, gold, and silver deposits, but must be guided by the player deeper into the earth towards these deposits as the screen scrolls ever upward. Missing a deposit generates a penalty and certain miners will die upon encountering the wrong deposit of ore.