Accomplish the indicated achievement to get Gamerscore points:

[XOR] Rank Master: Successfully complete all missions with the highest 
distinction.
[XOR] A Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[XOR] B Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[XOR] C Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[XOR] Skills Collector: Collect all skills.
[XOR] CELEBLUM Master: Thoroughly mastered Zegapain XOR.
[XOR] Parts Collector: Collect all parts.
[NOT] Rank Master: Complete all missions with highest distinction.
[NOT] A Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[NOT] B Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[NOT] C Ending Cleared: Enter battle with Calm as partner and consistently 
achieve good results.
[NOT] Parts Collector: Collect all parts.
[NOT] Skills Collector: Collect all skills.
[NOT] GARDSORM Master: Thoroughly master Zegapain NOT.