

A brand-new strategy that fully utilizes the "diamond block" is now live! "TETRIS DIAMOND" features four game modes: "TETRIS", "DIAMOND", "DIA.2min", and "PUZZLE". In the new "DIAMOND" and "DIA.2min" modes, a "diamond block" appears after every five falling tetriminoes. Clearing a line with this block doubles your score! Earn a BACK TO BACK bonus by combining "TETRIS", "T-SPIN", and the new "DIAMOND" technique that uses diamond blocks to clear lines! Keep pushing your high score record!
| Mobile | December 3, 2007 |
| Android | March 1, 2011 |
| Audio | Subtitles | Interface | |
|---|---|---|---|
| 日本語 | ✓ |