Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock
100 Zombies (50 points)	100 Zombies
Cave Man (90 points)	Clear all caves.
Cheap as chips (50 points)	Defeat Kolles Terrol.
Coin Hoarder (50 points)	Collect 1000 coins.
Collector at heart (90 points)	Collect all SIGI's.
Eat an apple (20 points)	An apple a day.
Gold Rush (100 points)	Pocket 2500 coins.
Golden Crown (50 points)	Find the long lost golden crown.
Golden Grail (50 points)	Find the long lost golden grail.
Golden Lady (60 points)	Hard to find and almost out of reach.
Golden Talisman (50 points)	Find the long lost golden talisman.
Grand finale (80 points)	Defeat Ivan Stinkup.
Save Melusina (50 points)	There she goes again.
Score 100% (100 points)	In under 30 minutes?
Too blind to see (50 points)	Defeat Blind John
Under pressure (10 points)	Fart at Melusina.
Whistle blower (50 points)	Defeat the Steel Horse.