Green Nuns is IMO some of the most intensely insane dance music there is:
Fire is an amazing track that I don't often see mentioned, at 3:19 the track transform from energetic and acidic into a full on Shizophrenic Mindtrip:
Their Remix of Scarab is almost too intense to handle, specifically its Eruption of a climax:
There's also this Hitchcock of a Goatrack, with unbelievably supsensful acidleads and a phat beat:
And of course many, many more in this beatifully mad genre, those are just off the top of my head right now.