1. 'Trophies' - you have a new main menu item to check your level passing achievements. If you pass a level without losing any ore you can win Bronze, Silver or Gold Master cup depending of your difficulty level (Easy, Medium or Hard).
2. Levels unlocking strategy changed - pass one level (all 4 shafts) and the next level is always unlocked. You can play it whenever you want from the 'Go To Level' button.
3. Levels' difficulty update
