REACTOR (Pre-Sickening Gore) is a 90´s Old School Death Metal band from Switzerland. The demo clocks in at over 32 minutes in 5 songs (which is longer than the Sickenig Gore full-length effort, Destructive Reality),  including some minor noises which are on the actual mastertape too (a base overdrive that wasn't  noticed, but that was 1991! Analog and raw as shit, but thats how it was back then).