The Nintendo Expansion Pack for the Switch Online service added games from the Nintendo 64 and Sega Genesis eras. Paper Mario is the first new game that has been announced. It will be available on December 10th.
Paper Mario was the first entry in the Paper Mario series and was released for the N64 in 2000. Paper Mario: The Origami King was released on the Switch last year.
The launch of Nintendo's Expansion Pack was not well received. The yearly fee is still a big hike over the regular fee of $29.99, but it does include a big Animal Crossing expansion. Adding just one release at a time isn't likely to change people's opinion of the service
Paper Mario is on a list of upcoming N64 games that Nintendo has already confirmed to be on the way. The Legend of Zelda: Majora's Mask is one of the others.
