The Tetris 99 25th MAXIMUS CUP event runs from 12 a.m. PT on October 8 to 11:59 p.m. PT on October 11. To participate, you’ll need to be a Nintendo Switch Online member and play the Tetris 99 online mode during the event period. You’ll earn event points based on your placement in each match. Once you’ve accumulated a total of 100 event points, a new theme will unlock, featuring art, music and Tetrimino designs inspired by the MONSTER HUNTER RISE game!