Gigachad
I was born in 99 so by the time I was old enough to play the N64 was well on its way out already, but I did get to play Doom 64 a bit. I think our cartridge was damaged cause it would randomly reset after a while, sometimes it would take a few hours before it crashed, sometimes just 10 mins in. And unless I'm really misremembering it, it used a password system instead of saving onto the mempack so playing was kind of a chore and I eventually gave up. A couple years ago I got that gzdoom port and was finally able to finish it. It was really fun and it came with 2 fanmade bonus eps too which were pretty neat. I really wish there were more people making maps for it, Doom 64 is a really purist upgrade to Doom1/2.
I vaguely remember playing either the PS1 or the Saturn version at a friend's home back when I was a kid, I don't remember which but it had a pain elemental right on e1m1 and I remember thinking wait a sec thats not right at all lol.