Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Clear Arcade (Commander Style) (50 points): Clear Arcade Mode: Commander Style without using a continue.
Clear Arcade (Normal Style) (50 points): Clear Arcade Mode: Normal Style without using a continue.
Clear Score Attack (50 points): Clear Score Attack without using a continue.
Highlander's Journey (30 points): Become the Rounder rank in Ranked Matches (either Normal or Commander).
Play Arcade Mode (10 points): Enter Arcade Mode.
Play Score Attack (10 points): Enter Score Attack.
Play Story Mode (10 points): Enter Story Mode.
Practice Makes Perfect (10 points): Enter Training Mode.
Step to a Highlander (10 points): Become a Novice Rank in Ranked Matches.
The Existent Win (10 points): Get your first victory in Player Match (Normal Style).
The Nonexistent Loss (10 points): Get your first victory in Player Match (Commander Style).
Veteran Partner (50 points): Play 100 Ranked Matches (Commander Style).
Veteran Pilot (50 points): Play 100 Ranked Matches (Normal Style).
Welcome to the World of the Highlander (50 points): Become the Hi-Rounder rank in Ranked Matches (either Normal or Commander).