120 points is probably the lowest score you can get to complete King’s Quest II, but I enjoyed the game and I don’t have any aspirations of trying to get a higher score. I can guess some ways in which to get a higher score, because I simply gave away some of the valuables that I found and there are probably other ways to get what you want.
I almost got through the whole game on my own, which I find quite an accomplishment with my adventure gaming skills. I had trouble finding the right command to open the door which was a pity.