When I finish SFIV on iPhone I get presented with a screen that says something along the lines of:
"You have unlocked the following achievements blah, blah, blah..."
What is the purpose of achievements in the game? Where can I view all of my achievements?
As well as the message above it also has another message which will say you have a total of X achievements. However, this number never increases, it is always just 1 or 2. Why is that?