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

Last Laugh (25 points): Win 5 Xbox LIVE Final Fight Matches.
I Let You Win (10 points): Win 1 Xbox LIVE Final Fight Match.
Double or Nothing (50 points): Win 10 Xbox LIVE Revenge Matches.
Keep Them Coming (20 points): Complete 20 Challenges.
Apply Yourself (10 points): Complete 10 Challenges.
Sandbagger (50 points): Win 10 Xbox LIVE Final Fight Matches.
Contender (25 points): Win 5 Xbox LIVE ranked matches.
Rookie (10 points): Win 1 Xbox LIVE ranked match.
Every Fighter Has a Story (75 points): Complete Story Mode with all available fighters.
Run It Back (25 points): Win 5 Xbox LIVE Revenge Matches.
Rematch (10 points): Win 1 Xbox LIVE Revenge Match.
Future Champ (50 points): Win 10 Xbox LIVE ranked matches.
Getting the Hang of This (25 points): Achieve Level 5 with any fighter.
Legend (100 points): Complete 100 Challenges.
Blood Sweat Fear (90 points): Complete 90 Challenges.
Multitalented (25 points): Achieve Level 10 with all fighters.
Diversity (20 points): Achieve Level 5 with all fighters.
Master (50 points): Achieve Level 15 with any fighter.
Adrenaline Rush (50 points): Complete 50 Challenges.
Relentless (40 points): Complete 40 Challenges.
In the Zone (30 points): Complete 30 Challenges.
Domination (80 points): Complete 80 Challenges.
Rampage (70 points): Complete 70 Challenges.
Unstoppable (60 points): Complete 60 Challenges.