Banging acid tune from 1994. Fantastic stuff: pounding kick drum, crashing cymbals, and lashings of 303. The 'Floatation Mix' on the B-side is only slightly more laid back, with a trancy arpeggio spacing it out, somewhat.
Also included is the Reconstruction Mix of New Order's Confusion, which is even more banging, pounding, and relentless, at over 10 minutes. The acid is even more full-on and brain mashing, while the vocodered vocal loops add a bit of depth. This beast is an all-time favourite of mine.