>>712729903That's an optional extra level and isn't accessed in a normal playthrough, only by password or the fun options menu.
>>712729692The number of levels that central structure you circle around get repetitive even if they have their redeeming elements. Progression in Eye of the Storm, Unholy Temple and Altar of Pain blend together. Terror Core isn't particular imaginative and reeks of tech base layout with a hell theme, Dark Citadel is just crap, The Spiral is complete filler padding, hopefully this helped jog your memory. Doom 64 is alright, but mostly a 6/10 with some 8/10 moments sprinkled in here and there in the second half.