This 20-Year-Old Doom Mystery Has Been Solved! (Check the top comments!)

Update: This mystery is officially SOLVED! Thank you to everyone who helped!
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DoomWiki: https://doomwiki.org/wiki/DWANGO
Complete Soundtrack:    • DWANGO Full Soundtrack - MIDI OST (Ro...  
"Identify That Doom Song": https://www.doomworld.com/forum/topic...
Full DWANGO Wad Collection: https://doomshack.org/uploads/dwango_...

Songs used in this video:
0:00 Strangelove by Depeche Mode
2:26 Eat Your Vegetables from Commander Keen
3:18 Situation by Yazoo
4:11 Hitfloor.mid by Music Media Design, taken from Dwango5. Probably based on Energizer (Cyber Space mix) by Hit the Floor aka Dieter Bohlen (I'm open to suggestions though!)
5:03 TZ_THEME, Twilight Zone theme by The Wonder
6:39 GMDANC00.MID by Tracy Hurst (Slightly Remixed)
9:10 Song from EarthSiege Soundtrack
11:19 Rawk.mid by Jeremy Doyle
14:17 Unnamed MIDI (early version of ripsnort) by Jeremy Doyle