Tetris. Game Start: The player launches Tetris. Tetromino Appearance: A random tetromino appears at the top of the playfield. Tetromino Control: The player can move the tetromino left or right, rotate it, or make it fall faster. Tetromino Falling: The tetromino descends one row at a time, gradually filling the playfield. Collision Detection: When a tetromino reaches the bottom or collides with other blocks, it stops. Row Completion: If a horizontal row is filled with blocks without any gaps, it disappears, and the player earns points. Level Up: As the player earns more points or clears more rows, the game's speed increases, making the tetrominoes fall faster. Game Over: If the stack of blocks reaches the top of the playfield, the game ends, and the player's score is displayed.