Tetris HTML5 Canvas Example

This is a basic Tetris game coded in JavaScript. It has all basic functioning of a Tetris game. �Move piece left with left button �Move piece right with right button �Drop piece down with down button �Rotate piece with up button �Displays # of lines of cleared �Updates score as lines are cleared �Updates level based on lines cleared �Increases speed based on level �Displays next piece that will be fall