Complete each achievement to get the allotted gamerscore.
Achievement Description All-in-One (20) Perform a Single, Double, Triple, Tetris, T-Spin Single, T-Spin Double, and 8 Combo in one game! Clear 5 Lines (10) Clear five or more lines during one Single Player or Online Multiplayer game. Combo (20) Clear one or more lines with successive pieces to increase your Combo count above eight. Old School (25) Complete a Single Player game of Marathon without using the Hold Queue. Online Back-to-Back (20) Score a Back-to-Back Tetris in Online Multiplayer. Online Expert (20) Accumulate at least ten hours of Online Multiplayer game play. Online Rookie (20) Win a "Free for All" match in Online Multiplayer. Rainbow (10) Use at least one Mino from each of the seven Tetriminos to clear a single line. Reach Level 5 (10) Reach or exceed level five in a Single Player game of Marathon. Speedster (25) Complete a Single Player game of Marathon in 20 minutes or less. T-Spin (10) Rotate the T-Tetrimino into a T-Slot to perform a one or two line clear. Tetris! (10) Clear four lines at once.
Contributed By: Guard Master.