From Nintendo:
With a Nintendo Switch Online + Expansion Pack membership, you’ll be able to join the DK crew as they climb, swim and jump through treacherous and puzzling areas while taking advantage of their special abilities and upgrades. Hunt for collectibles and play wacky minigames while solo, or duke it out in battle arenas with friends in four-player split-screen action (additional accessories may be required for multiplayer mode; sold separately). There’s enough fun to go around to make you go bananas!
Donkey Kong 64 begins with K. Rool back again for another nefarious Kong-quest. Our furry hero Donkey Kong (the leader of the bunch) must take the fight to K. Rool and the Kremlings, reclaim his Golden Bananas and save his homeland from certain doom. Choose from DK, Diddy Kong, Tiny Kong, Lanky Kong and Chunky Kong and play solo in a quirky adventure or with friends in competitive battle arenas.
The Nintendo Switch Online + Expansion Pack membership gives players access to a library of Nintendo 64 games with added online play for up to four players, a library of select Game Boy Advance games and retro SEGA Genesis games.
