So, what is Doom Enhanced? Well, it's a mod that basically

Wait, what? Eew! Who put that there?
Anyway, as I was saying before I lost my train of thought, it basically updates some aesthetic things in Doom to fit with other FPS's of the 90s, like Duke3D and Quake, without really touching the gameplay. Some of the features off the top of my head...
- Quake-style gibbing.
- Nashgore blood and Corwin's splash mod.
- Alternate death sequences for the Zombieman, Shotgunner, Pinky and Imp that are sometimes played instead of the normal one.
- Player now has an actual "standing still" frame.
- Footsteps and body thud sounds, both for players and monsters.
- Most of the props can be broken, gibbed or affected.
- Sound enhancements - Imp Pain, Caco Pain, Lost Soul Pain, Chainguns and some monster weapons now have their own sounds instead of reusing the same old one.
- Projectiles use teleporter lines and make sounds as they whiz past your head.
- Some little slightly-hidden things that will put a smile on your face.
I also included a optional extra wad, Doom Enhanced Items, which should be loaded after Doomenh.wad. It adds on...
- Shell casings.
- Unique pickup/raise sounds for all weapons and items.
- Fist is silent.
Doom Enhanced Final