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

Apocalypse (15 points): Stay alive until twenty enemies appear then destroy them.
Crystal Master (10 points): Get at least 1,000,000 in one game.
Crystal Ninja (25 points): Get at least 10,000,000 points in one game on the standard or lower difficulty setting.
Crystal Rookie (5 points): Get at least 10,000 points in one game on the standard or lower difficulty setting.
Immortal (25 points): Get at least 1,000,000 points without losing a life on the standard or higher difficulty setting.
Life-saver (15 points): Get 30 lives on the standard difficulty or higher difficulty setting.
Marathon Man (15 points): Successfully complete the first 60 waves in one game.
Navigator (20 points): Successfully complete wave 20 without touching a mine or obstacle on the standard or higher difficulty setting.
Nerves Of Steel (25 points): Get 1,000,000 points without using any smart bombs.
Smart-ass (15 points): Get 30 smart bombs on the standard or higher difficulty setting.
Speek Freak (20 points): Successfully complete wave 1 in five seconds or less.
Treasure Hunt (10 points): Get at least 30 bonus crystals in one game.