If you fix the page scrolling problem, it might make a decent tetris game.

The screen moves when you play so you really cant play 0 stars for that. but its tetris so half a star for that.

I See Potential As A Tetris Clone. But Some Notes, To Improve. The Play Screen Isnt Quite Big Enough On The Right Side, And Either Need To Make It Where Clicking The Game Isolates The Keyboard From The Browser Or Switch The Controls To Different Keys. As Is The Player Ends Up Moving Their Entire Screen Around As They Try To Move The Blocks.