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

Clear "Base" (20 points): Clear one round of Challenge Mode "Base".
20K (20 points): Play Challenge Mode "Base" and score 20,000 points.
Time Attack 60sec. : 30 blocks (10 points): Play Time Attack Mode 60sec. and erase 30 blocks.
Time Attack 180sec. : 90 blocks (10 points): Play Time Attack Mode 180sec. and erase 90 blocks.
Time Attack 300sec. : 150 blocks (10 points): Play Time Attack Mode 300sec. and erase 150 blocks.
Time Attack 600sec. : 300 blocks (10 points): Play Time Attack Mode 600sec. and erase 300 blocks.
Time Attack 60sec. : 70 blocks (20 points): Play Time Attack Mode 60sec. and erase 70 blocks.
Time Attack 180sec. : 200 blocks (20 points): Play Time Attack Mode 180sec. and erase 200 blocks.
Time Attack 300sec. : 300 blocks (20 points): Play Time Attack Mode 300sec. and erase 300 blocks.
Time Attack 600sec. : 600 blocks (20 points): Play Time Attack Mode 600sec. and erase 600 blocks.
Half Million (20 points): Play Challenge Mode and score 500,000 points.
Single Lap Quarter Million (20 points): Play a Single Lap of the Skin Edit Mode and score 250,000 points.