I significantly enhanced the CPU algorithm: It lasts a lot longer, will try to actively complete three or four lines if playing aggressive and uses hold for modern style. I'm not the worst player but I cannot beat it anymore on regular speed. But it's a lot of fun to play anyway! And of course, you can adjust it the other way around as well and slow it down (speed factor allows 75% or 50%) or increase its soft drop delay. [end]