You are controlling a small prehistoric cave cab and it is your duty to safely navigate your passengers through treacherous obstacles and transport them to the desired destinations. The player must use the propellar on top of the cab to land and take off safely from the different platforms. If you collide with the rocks or land too fast, your cave cab crashes and it will end up as a pile of junk. Each level gets more difficult with longer and narrower caverns to maneuver through. Points are awarded according to the difficulty at the end of each completed level.