No idea what the 2025 is doing there, or the '25 appended to his name. His Wikipedia entry [1] mentions neither. It does explain how he inspired Blue Scuti to (be the first to) crash the game:
> After the 2023 CTWC, Yu announced his intentions to try to "beat the game" by reaching its "killscreen," a point late in the game when the code glitches, resulting in a game crash due to hardware limitations within the NES.
> Fellow competitive Tetris player and YouTuber Willis Gibson (known online as "Blue Scuti") became inspired by the goal, and would beat Yu to the achievement on December 21, 2023. Yu celebrated the achievement with Gibson, exclaiming "He did it, he did it!" on his livestream.
> On another livestream on January 3, 2024, Yu beat the game, becoming the second person to do so after Gibson and first person to achieve the earliest possible game crash on level 155, two levels quicker than on Gibson's run.