Exactly the same as Pick and Dig, but now with caterpillar obstacles that kill you if you touch them.
Description to Pick and Dig:
Move your character around the screen to find the way to the exit. Each time you push the arrow you either move one square in that direction, or you use an item such as a shovel (break through rocks beneath you) a pickaxe (break through rocks to your left or right) or up to create a ladder. Each of these items can only be used if they are in your inventory and only once per item. Collect keys to open doors and the more tools you get the more points you score.