Its Simple, WACK THE DIGLETTS!
If you can't wack one its probably just standing up tall and being strong. Press Pause before pressing shop. A new update has released WACK A... Wiglett? New Hammers and more! WARNING if restart is pressed it takes all your digletts wacked. You might have too keep clicking to use the restart. If you buy a new hammer but you lose it go inside the game and go in sprite 17 and give back your Diglett Coins.