You will control a digging machine and search for gems and bags of gold. If you get the gems you will be able to go on to the next level. Nobbins and Hobbins will try to stop you, and while Nobbins are quite slow, you should be more worried about the fast Hobbins. Digger can defend himself by crushing anything, letting a gold bag crush his enemies or by shooting a single shot which recharges after about 30 seconds. Of great help might be the bonus cherry that appears only sometimes and that makes Digger invincible for a while.