Nevertheless, the Switch would not magically have a cartridge slot for the GBA ROMs when it is available, and rather these games would be translated to the digital version and have it online. This was with the Game Boy advanced titles and other cartridges that can fit the Nintendo DS or Dual Screen console, which still has the slot at the bottom. The arrival of the Game Boy for the Nintendo Switch has been long speculated, and it was known that Nintendo has previously observed the games to be cross-played between consoles. I'd imagine N64/Mega Drive are being rolled out first as they're more enticing things to prompt people to upgrade- Tom Phillips September 23, 2021 Fwiw, N64 and Mega Drive were the two NSO platforms I'd heard about alongside Game Boy/Color.