♐DIFF is a video posted to the 3rd youtube channel on May 26, 2018. It was posted 19 days after the ♐AZO series was posted. It was the last video posted for nearly three months, until ♐CFO was posted on August 17th.
The 42 second video consists of flashing colors, with a beat repeating every few seconds.
Wiki user Malcolm has noted that the audio sounds like music with a large amount of interference laid on top of it, with a repeating beat.
Discord user alexbassguy notes: “I know EXACTLY how that audio was created, and it’s very incongruous with ‘real’ UFSC. I know because I happen to have the exact same plugin that was used… a plugin called Glitch2 from Illformed. It creates a very, very specific rhythmic glitch effect on audio, and I will bet any amount of money it created the audio in DIFF.” He created a recreation “by running Glitch2 on some basic audio and distorting/downsampling the crap out of it.”