I think there is a bug where all the moles come out at the same time and then there is a game over right afterwards. this happens every time on my machine anyway.
I expect 1-3 moles to emerge, to wack a 1 or two and then rinse and repeat with the next 1-3 moles. but all or most of them come out at once.
I'm not sure whats triggering the game over unless its timer based, or you have to hit all the moles each round, which i cant really do when they all pop up at the same time. (lol kolf skill issue bro)