Click here to see the Special Characters Chart.
You can only get a special adult from the characters shown on the chart.
You can no longer obtain a special adult once you have had a Matchmaker visit (even if you said no) or had a baby by connecting to another tamagotchi.
I have achieved all three of the special adults and 350 points is the absolute minimum amount you need- sometimes you may have more before it changes. You will need to have points in the other 2 categories as well- 50 in each is a good level to aim for, to make a total of 450 or more in all 3 categories.