The Tetris 99 39th Maximus Cup event runs from 12 a.m. PT on April 5 to 11:59 p.m. PT on April 8. Players must be a Nintendo Switch Online member to participate in the event. Earn 100 event points to unlock a new theme featuring art, music, and Tetrimino designs from Princess Peach: Showtine! Check out the latest Tetris 99 trailer to see what to expect.