A boulder dash clone where you have to dig into the ground collecting all the minerals. Be carefull not to dig into solid rocks or the machine will break, also watch your fuel level closely, you dont want to run out of fuel while being deep inside the earth. Funny game with a story mode included.
You need the arrowkeys to move motherload on the screen. Press arrowkey down to make motherload dig down. If you drive motherload into a mineral you collect a lot of points, if motherload hits solid rock the machine explodes.