Waddya want to see right here? Cyan, Green, Blue and Red coloured Plutonia-style Boom-compatible Doom megawad kinda 90s. I suggest you to use Zdoom to play this on Windows 98 (and above), or if you are really tough one, the BooM202 modification, BogreG to play on MS-DOS up to WinME (BooM202 runs on i686 machines and above) Also I recommend Yamaha XG (For Win7 use VST) synth to MIDI playback (some midis have special advantages in this case) SoundBlaster 16 sounds not bad too ;) Now I'm lolling at the predecessor of this, the Boggy Region itself was simply a name of 5-map episode from... (guess what, this joke wad was uploaded on doomworld in 2017, it'd better not to remember :)
Zdoom only. United Secret and Curse of Boggy Region v1.5 You will probably need PLUTONIA iwad to run this
Changelog of version 1.5 skipping 1.4:
Added major changes to map29 and minor to other maps.
To run you will need Plutonia IWAD and ZDoom 2.8.1+ (Or any modern zdoom-family port)