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

Hello World!! (10 points): Finished Chapter "Gritty".
Rule Master (10 points): Finished Chapter "Screaming Alarm".
Campaign Master (30 points): Finished Campaign.
Campaign Legend (50 points): Finished Campaign (Hard Mode).
Not bad as a Fighter (20 points): Finish all default Free Missions.
Dex guy (10 points): Finish a default Free Mission by all Masters.
Picky one (20 points): Finish half of the default Free Missions using all Masters.
Full course. (40 points): Finish all of the default Free Missions using all Masters.
Solism (15 points): Finish all of the default Free Missions using Sol.
Master of adjectives (15 points): Finish all of the default Free Missions using Sin.
Romping Izuna (15 points): Finish all of the default Free Missions using Izuna.
Dr. Paradigm's compliments (15 points): Finish all of the default Free Missions using Dr. Paradigm.
Valentine may praise you…? (15 points): Finish all of the default Free Missions using Valentine.
Player Match Debut (25 points): participate in player match and complete the game.
Rank Match Debut (25 points): participate in rank match and complete the game.
Tag Match Debut (25 points): participate in 2 vs. 2 battle and complete the game.
Immoral Flame (40 points): Use Sol and win 10 times (rank match only).
Prince Lightning (40 points): Use Sin and win 10 times (rank match only).
Fox trot (40 points): Use Izuna and win 10 times (rank match only).
Get a Super PhD (40 points): Use Dr. Paradigm and win 10 times (rank match only).
The Sweet Revelation (40 points): Use Valentine and win 10 times (rank match only).
Heaven Or Hell (30 points): Win 50 times in Rank Match.
Let's Rock (50 points): Win 100 times in Rank Match.

Additionally, there are eighteen secret achievements:

Immortal Slayer (10 points): Finished Chapter "The Gaze of the Chronicle".
SIN Trainer (10 points): Finished Chapter "Howling compass".
Shooting Star (15 points): Finished Chapter "Arch Enemy".
Sugarless (15 points): Finished Chapter "Birthday".
King Ky Takes His Sword (20 points): Unlocked Ky Kiske.
First Chimaki (10 points): Opened a Hidden treasure chest.
Chimaki Mania (20 points): Opened half of the Hidden treasure chest.
Chimaki Master (30 points): Opened all of the Hidden Treasure chests.
Wow! thanks a lot (60 points): Get a S rank in all of the stages of Campaign mode (in Normal or higher).
Ky's applaud (15 points): Finish all of the default Free Missions using KY.
Servant Slayer (20 points): Kill 20 enemy Servants by your Master in one match (vs Player Match only).
Capture Slayer (20 points): Kill 100 Captures by your Master in one match (vs Player Match only).
Bananas! (10 points): Fall by a Banana (vs Player Match Only).
Treasure Hunter (10 points): Open 5 treasure chests in one match (vs Player Match only).
ITEMANIA (20 points): Use any type of item 30 times in one match (vs Player Match only).
Lord Lightning (40 points): Use KY and win 10 times (rank match only).
Kings Gambit (35 points): Destroy enemy Master Ghost on the first round (rank match only).
Eternal Challenger (20 points): Lose 30 times in Rank Match.