Oh I think I understand. I have just implemented that feature in my game using a Spritefont object. I expect you can do this with any object that displays text.
So if I understand you correctly you want this:
I've done it like this:
1) First I create the text object.
Then I change its text right after to what I want.
2) Makes the score text float slowly upwards. It sets the text object's Y coordinate to whatever the coordinate already is, and then subtracts by 0.25. You can change this value to change the speed.
Hope this was more useful for you. Otherwise, as you can tell, I find it a little hard to figure out completely what you mean. I'll try and help if I can.