he’s asian
The game is Tetris The Grandmaster 3: Terror Instinct.
It’s never been released outside of Japan, but you can download a clone called Heboris, then download the Unofficial Expansion (all of this was taken down recently, by the way, so you have to look harder now) and try it yourself.
My crack at it (on a different mode, but still hard, though still easier than Shirase)