Tetris Game: Arrange falling Tetriminos in a rectangular playfield. Implement grid-based system to track occupied cells. Use matrices to represent Tetriminos' shapes and rotations. Track current Tetrimino's position, rotation, and descent speed. Implement collision detection to check for block overlap and contact with walls or other blocks. Use timers to control descent speed and automatic locking. Allow player input to move left/right, rotate, and perform soft/hard drops. Implement line clearing logic, removing completed lines, and shifting above blocks downward. Track score based on lines cleared. Increase level and speed over time. Provide visual feedback with colorful blocks and animations. Use sound effects for movements, line clears, and game over. Display upcoming Tetrimino and current score. End game if Tetriminos reach top