This is just a sample of the amazing series of 壁纸 Desidus has made at DeviantArt. Each of these designs comes in several varieties, with logos, with various effects... Check them out! :)
The Tetris® 99 38th MAXIMUS CUP event runs from 11 p.m. PT on December 14 to 10:59 p.m. PT on December 18. To participate, you’ll need to be a 任天堂 Switch Online member* and play the Tetris 99 online mode during the event period.