Actually, there are more versions than that.
I have the original CD that was only available through mail order, and it has five different remixes that all essentially sound the same (Hypnotic House Mix, Techno-Syndrome Mix, etc.).
A year later, there was "Mortal Kombat The Album" that included the techno song along with songs based on each fighter (Most notable for Sub Zero's song "Chinese Ninja Warrior"
- if you've never heard it, you simply must do so right now.)
Then when the movie soundtrack came out, the techno song was thrown on that album. And it wasn't until Mortal Kombat Annihilation came out that we finally got a new version of the techno song - an updated mix that used Shao Kahn's voice instead of Shang Tsung.
Let's just say that back in the mid 90s, I was really
into Mortal Kombat.