Hold down the L/R mouse buttons to drill in the direction of the cursor. Hit 'M' to open the 'Ore Score' menu or just click it. Your goal is to collect the gems underground. Don't hit the rocks as they drain 1 of your 'Ore Score'. The blue gems add 1 to your 'Ore Score'. The red gems add 3 to your 'Ore Score'. There is no max 'Ore Score' but you can stop at 30.
All of the graphics were made by me. Music tracks made by me using Beepbox. Gem collection sound made by me. All other sound effects belong to their respective owners.
