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

  Gold Wing (35 points): Beat Arcade mode on Hard. 
  Silver Wing (25 points): Beat Arcade mode on Normal. 
  Bronze Wing (15 points): Beat Arcade mode on Easy. 
  Perfection (20 points): Win a perfect match on Hard (Single Player modes 
  only). 
  Power Trip (20 points): Score 8 points in a single match using Power Shots 
  (Single Player modes only). 
  Fear Of Heights (15 points): Win a match without jumping on Normal or Hard 
  (Single Player modes only). 
  Pacifist (15 points): Score 8 points using Short Shot in a single match 
  (Single Player modes only). 
  Defender (15 points): Return 20 Power Shots in a single match (Arcade mode 
  only). 
  Signum IV (10 points): Defeat Signum IV on Normal or Hard. 
  Survivalist (10 points): Hit the bird 15 times in a row (Single Player modes 
  only). 
  Anger Management (10 points): Smash 8 shots in a row (Single Player modes 
  only). 
  Practice Complete (10 points): Complete the Practice Mode.