Accumulate at least ten hours of Online Multiplayer game play.
Unlocked: 06 Aug 2011 19:18:49
Score a Back-to-Back Tetris in Online Multiplayer.
Unlocked: 24 Jun 2011 15:51:40
T-Spin
10Rotate the T-Tetrimino into a T-Slot to perform a one or two line clear.
Unlocked: 21 Mar 2011 12:55:27
Win a "Free for All" match in Online Multiplayer.
Unlocked: 01 Aug 2008 14:02:58
Clear five or more lines during one Single Player or Online Multiplayer game.
Unlocked: 27 Jul 2008 22:42:40
Reach or exceed level five in a Single Player game of Marathon.
Unlocked: 27 Jul 2008 22:42:40
Tetris!
10Clear four lines at once.
Unlocked: 27 Jul 2008 22:42:40
Rainbow
10Use at least one Mino from each of the seven Tetriminos to clear a single line.
Unlocked: 27 Jul 2008 22:42:40
Combo
20Clear one or more lines with successive pieces to increase your Combo count above eight.
Unlocked: Offline
All-in-One
20Perform a Single, Double, Triple, Tetris, T-Spin Single, T-Spin Double, and 8 Combo in one game!
Unlocked: Offline
Speedster
25Complete a Single Player game of Marathon in 20 minutes or less.
Unlocked: Offline
Old School
25Complete a Single Player game of Marathon without using the Hold Queue.
Unlocked: Offline