The New York mix of "Relax" is the third 12" mix, which was originally released as the Sex Mix (as, confusingly, were the first two). It features four minutes of instrumental loops and textures before cutting to the standard vocal mix.
The Ollie J and Trip O Matic Fairy Tale mixes were first released on the 1993 reissue of "Relax". The latter mix features vocal samples from "Relax", and an interpretation of the "Two Tribes" riff.
The Carnage mix is an instrumental run through "Two Tribes", with "my name's Nash, mine is the last voice you will ever hear" over a stripped down version of the last chorus, then looping round for a vocal run through the track, with an extended middle eight. The Annihilation mix is the one that people remember.
The Legend mix appeared on a German 12" single in 1993, featuring four Intermission remixes, using vocal samples from the original track.
The Pleasurefix mix is actually the original 12" mix of "Welcome to the Pleasuredome" (released as the Real Altered or Alternative to Reality mix) and is an instrumental run through followed by a vocal run through. It is not the same as the Pleasure Fix mix that appeared on the b-side of the "The Power of Love" 12" single.
The Brothers in Rhythm Rollercoaster mix of "Welcome to the Pleasuredome", one of the 1993 remixes, follows a similar pattern to the album version, but with completely retooled backing.
Young Persons Guide is 10:04 on this compilation, compared with over 12 minutes on the 12" releases. It fades in the 2nd verse of the main song.
Twelve Wild Disciples is a sampled and reconstructed version of the song according to the info on the sleeve of the 12" mix. The format is an instrumental run through, break to 4 loops of the middle 8 with extra keyboards, then a vocal run through.