Game Center achievements

Complete the following tasks to unlock Apple Game Center achievements.

20Gems In A Row : Collect 20 gems without killing anything, dying, or restarting.
Facebook Score : Post a score to Facebook.
Gem Collector : Collect 1337 gems.
Kill 10 Of Each Enemy : Kill 10 of each type of enemy.
Legendary Skill : Get 250,000 points without dying.
Maximum Multiplier : Get a 10x multiplier.
Mega Points : Accumulate 100,000,000 lifetime points.
Point Collector : Score 250,000 points.
Point Enthusiast : Score 50,000 points.
Point Master : Score 1,000,000 points.
Saving Throw : Launch a bomb when almost dead.
Survival : Survive for 2 minutes.
Tweet Score : Post a score to Twitter.
WMD : Kill 100 enemies with one bomb.