It’s that fact that half this material was recorded back in the mid eighties that really makes it stand out, death metal was still in its infantile stages back then with extreme metal making a transition between the crust influenced filth of Hellhammer and the ilk to a more brutal strain with bands like Possessed and Slaughter emerging out of the underground with a significantly more potent and brutal form of metal unlike anything heard before, and when you realise it came out at the same time as two monumental releases by the aforementioned bands you wonder why the fuck it never got quite as much attention as it was just as influential if not more so than those classics.
https://www.youtube.com/watch?v=W6LxbiYo-J4