Achievements:

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

Cherry (5 points): Eat the Cherries that appear after eating a set number of 
  Pac-Dots in Round 1. 
  Strawberry (5 points): Eat the Strawberry that appears after eating a set 
  number of Pac-Dots in Round 2. 
  Orange (10 points): Eat the Orange that appears after eating a set number of 
  Pac-Dots in Round 3 or 4. 
  Apple (10 points): Eat the Apple that appears after eating a set number of 
  Pac-Dots in Round 5 or 6. 
  Melon (15 points): Eat the Melon that appears after eating a set number of 
  Pac-Dots in Round 7 or 8. 
  Galboss (15 points): Eat the Galboss that appears after eating a set number of 
  Pac-Dots in Round 9 or 10. 
  Bell (20 points): Eat the Bell that appears after eating a set number of 
  Pac-Dots in Round 11 or 12. 
  Key (25 points): Eat the Key that appears after eating a set number of 
  Pac-Dots after Round 13. 
  All Ghosts (10 points): Eat all ghosts in succession after eating a Power 
  Pellet. 
  Clear Round 5 (15 points): Clear the beginner level by completing the first 5 
  rounds. 
  Clear Round 21 (40 points): Clear the advanced level by completing the first 
  21 rounds. 
  Perfect (30 points): Eat all ghosts four times within a stage.