Complete the following tasks to unlock Apple Game Center achievements.

Achievement	How to unlock
5Combo	Get 5 points.
A Grade Ninja	Get A grade.
F grade Ninja	Get F grade.
I now know ninja...	Pass the midterm exam.
I'm not freshman...	Pass the final exam.
Lucky Ninja	Average of 40 points.
NinjaStar Sniper	Hit the edge of a target.
Perfect Score	Get a perfect score.
Rampage	Rampage Ninja!!
SumacumLaude	Get all A+.