Tetris
12 Achievements
PS3
Insane
In Origin clear lines 20, 10 and 1 in that order
1.7%
How to unlock the Insane achievement in Tetris - Definitive Guide
tsugarusatsujin
I did this a completely different way than the video below but the video speaks for itself so I say just follow this and you will get the trophy.
Thanks LeeorV