Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
BOO! (60 points)	Defeat 200 Blue (Scared) Ghosts.
Bursting Bubbles (40 points)	Beat the high score on all Paclantis (Chapter 2) levels.
Challenge Schmalenge (40 points)	Successfully complete all Betrayus Challenges at least once.
Chatter Pac (30 points)	Talk to each of Pac's friends between levels at least once.
Cyli Luck (20 points)	Complete any Cyli Hover Board level without losing a life.
Dots Incredible! (40 points)	Grab 200 Pac Pellets in a single level.
Everybody Chill (30 points)	Freeze 100 enemies with Ice Pac's Special attack.
Fireball-istic (40 points)	Stun 100 enemies with Fire Pac's Special attack.
Getting to Know You (40 points)	Read the bios for each of Pac's friends between levels.
Gold Medalist (60 points)	Win a Gold Medal on every level.
Gotta Bounce! (40 points)	Stun 100 enemies with Rubber Pac's Special attack.
High Time (Travel) (40 points)	Beat the high score on all Prehistoric Pac-World (Chapter 4) levels.
High in the Sky (40 points)	Beat the high score on all Space (Chapter 3) levels.
Lava Level Master (40 points)	Beat the high score on all Netherworld (Chapter 5) levels.
Life is Good! (40 points)	Get the number of Pac's Lives up to 50.
Magnetic Personality (40 points)	Attract and chomp 100 enemies using Metal Pac's magnet tongue.
Maze High (Score) (40 points)	Beat the high score on all Pacopolis (Chapter 1) levels.
Pac in Your Trash (20 points)	Chomp every container in any level.
Pac-Man Fever (60 points)	Visit every Arcade Zone in the game.
Pac-ed with Skill (60 points)	Complete the Tutorial and all of the Berry Challenges.
Pac-ing in the Prizes (60 points)	Get the Pac Prize score bonus at least once on every level.
Rocket-Man (40 points)	Complete the Lemon Rocket level without losing a life.
Rockin'! (20 points)	Defeat 5 Stone Monsters as Granite Ball Pac.
Six Pac (40 points)	End a level with six Health.
Spiral-ing In Control (20 points)	Complete any Spiral Cherry Copter level without losing a life.