Roblox Death Sound DOOM
This is a joke sound MOD that replaces all of the sounds (including the secret sound of certain source ports) with the Roblox death sound.
Go here to download the sound MOD:
http://www.mediafire.com/file/i8pwnr8ig7bmkv3/robloxdeathsoundmod.wad
Go here for the Doomworld Forums thread about it:
https://www.doomworld.com/forum/topic/94659-roblox-death-sound-doom/
Here's the YouTube video on the Doom MOD:
7/17/2017 Update: Some time ago, I realized that the YouTube user named FREEZE (A.K.A. SamotnyOgorek of ZDoom Forums) made a MOD like this before I did. Here's the ZDoom Forums topic for it: https://forum.zdoom.org/viewtopic.php?f=46&t=56845
Maybe someday there could be a new version where the instruments of the MIDIs are replaced with the sound.