1. Doom was released on the Super NES. (I enjoyed the DOS version but never played it on the SNES).
2. the Super NES supported multiplayer for some games (including DOOM) via the XBAND modem.
some more info:
https://doomwiki.org/wiki/Super_NES#:~:text=Doom%20for%20the....
You probably know about SNES banking already, but if not, see [2]
[0] https://en.m.wikipedia.org/wiki/Teleplay_Modem
[1] https://en.m.wikipedia.org/wiki/Family_Computer_Network_Syst...
[2] https://boingboing.net/2016/07/14/online-banking-for-nintend...
https://en.wikipedia.org/wiki/GameFan
http://www.hardcoregaming101.net/gamefan/GameFAN.htm
https://archive.org/search.php?query=GameFan
https://www.polygon.com/2014/9/29/6867993/egm-electronic-gam...
http://alifewellwasted.com/2009/01/23/episode-one-the-death-...
For example, the way they got games that weren't built for laggy multiplayer to work was unbelievable: they recognized the cartridge and patched the code. Yes, that means every game that worked was a result of a custom built patching of that game's code at run time!