Tetris Evolution
40 Achievements
1,000
12-15h
Xbox 360
Race Silver Medal
Cleared 40 lines in under 3:00 playing Race (Single Player).
15
How to unlock the Race Silver Medal achievement in Tetris Evolution - Definitive Guide
Same as the Bronze medal and this shouldn’t be a problem if you set the fill capacity to max and then blitz the first 15 lines as soon as you can. Then just make lines as fast as possible.