There will be worms coming out from the holes. The rule of the game is to simply smash the angry worms. You start off with 100 life points. Life increases by 3 and score by 1 if you successfully hit the angry worms while life decreases by 25 if you hit the happy worms. Life also decreases by 10 if you miss to smash the angry worm. At first, only 2 worms will come out from the holes and as the game progresses, more worms will come out with varying colors.