North By Doom 2

It's cute and nostalgic, but relies too much on directly copypasting sections from Doom II.  And there's really not enough items, especially at the Icon of Sin, which doesn't even have any rockets in the arena.  If you run out of rockets, you're just screwed, and have to redo the entire thing if you don't like saving mid-map.

It just DooM 2 in one map, but so linear just does not very fun to play, well...I still like the idea but I think it would be bigger. Most of areas just cramped as hell, and early areas just lack of ammo and health make it's more hardly than later areas, which is weird since later areas should be harder. At least it's not just copy'n'paste work, but that doesn't matter.