The first N64 game to be added to the Nintendo Switch Online expansion post-launch will be the original Paper Mario.
Nintendo Switch Online gets the weird NES Mario next week - CNET
New Mario Switch Online games coming next week!
Something drastic must've happened at Nintendo because we're getting remakes of some of the best Mario spin-off games in such a short period of time. : r/gaming
Mario Party 3 - Nintendo 64 - Nintendo Switch Online + Expansion Pack
How much is too much for N64 games on Nintendo Switch Online?
Paper Mario: The Origami King review – a hilarious postmodern delight, Games
Introducing Nintendo Switch Online + Expansion Pack, News
Nintendo Switch Online + Expansion Pack - Official Game Boy Advance: May 2023 Game Updates Trailer - IGN
Paper Mario: The Origami King - Switch [Digital Code] : Video Games
4 Nintendo Switch Online NES and SNES Games Being Added May 20th
Nintendo Switch Online Archives - Nintendo Everything
What games come with Nintendo Switch Online?
Nintendo News: Three Super Mario Advance Games Spring Onto Nintendo Switch Online + Expansion Pack May 25