Tetris: The Grand Master 3 - Terror‑Instinct
The basic gameplay of Tetris: The Grand Master is similar to that of other Tetris games. The player must move and rotate Tetromino-shaped pieces falling into a well to form horizontal lines, which will then be cleared. During gameplay, the game automatically gives ranks to the player according to their score, starting from 9 up to Grand Master (GM), roughly following the dan ranking system. The game speeds up rapidly, reaching instant gravity and upwards of three tetrominoes per seconds.
- 2 Player
Tetris: The Grand Master's gameplay is heavily inspired by its arcade predecessor, Sega Tetris, released 10 years earlier. It uses a modified rotation system, color scheme, and relies heavily on mechanics such as lock delay. Another game which inspired Tetris: The Grand Master is Shimizu Tetris, a fan game which was the first to introduce 20G gravity.
The main goal in Tetris: The Grand Master is to score points, awarding the player a higher grade. The game ends when a player reaches level 999. If the player scored enough points, they will be awarded with the grade S9. To achieve the grade GM, the player must also meet some time requirements during play. If the player tops out before reaching level 999, the game ends, awarding the player the current grade and its "mastering time", the time at which the grade was awarded during gameplay.