Playing Doom64 on the Doom64.Ex sourceport. Played it on the N64 soon after it came out in 1997, and this must be just about identical to it, as it uses the Doom64.wad extracted from the original ROM. Currently on map 22, playing on the highest difficulty level in continuous format.
I've also got the Doom64 Absolution and Doom64 Retribution versions, which I hope to take a look at some time.
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On a mountain range
I'm Doctor Strange