Game: classical tetris game with 2 players at the same screen

Classical tetris game is a best game to practice your logic.

Control keys:

Left player: W - rotate, A - move to left, D - move to right, S - drop, Q - faster move down.

Right player: Up - rotate, Left - move to left, Right - move to right, Space - drop, Down - faster move down.

Game:

Link to play in new window: https://scalan.com/apps/Tetris2.JS

Have a fun!

If you have ideas how to improve this game... Be comfortable to write comments... Thanks.