Free Tetris

Tetris is a classic tile-matching puzzle game. In the game of Free Tetris, tetrominoes with permutation and combination fall down from the top of the screen. Your task is to let tetrominoes make up a line with your arrow keys. When there is ten blocks in a line. The line disappears, you score points. How many levels can you pass in the game of Free Tetris? Good luck and have fun!