Here, corrected your game a bit. Hope It helps! Also to save the top score, you may use cloud data storing introduced in the tutorial (p.s. I haven't done that in your code). You may also reduce the time of shifting mole as per your convenience as it is a little too much.
Naithanim
Seems to be some problem. This game is just like the strawberry one but was-a-mole. Pls help me.