Press the start button to start. Use the left and right arrow keys to move the piece. Use the up arrow to rotate the piece. Use the down arrow to do a soft drop. Use the space key to do a hard drop. Other than that, it's pretty self-explanatory. Have fun! Feel free to comment your scores/lines cleared/levels!
Most of this game was made by PullJosh on youtube (I followed his tutorials). You should go check out the nine-step tutorial about this game on his channel! (I did some of the coding though) :) The music is from the original Tetris game.