Great sounds on this recording. The guys lock up with Takahashi in the mount position and just exchange punches on the ground. The action seem to get dirty as the fight progresses. Headbutts, blows to the back of the kneck, fingers in the face and use of elbows are outlawed in most modern mma fight codes, back in 1999 they were less of a problem.
Although this is part of a stage managed event, this fight looks and sounds real enough.