haah - that's cause it was the 80's! Early. Most of the bands on this soundtrack weren't really Metal bands at all but they made it work.
Sounds change inside a decade about every 3 years if you listen close but the farther to move on in time the less those details matter.
U listen to any of the new bands that are out now in the west I swear it's almost straight up out of 1989.
canto pop rules though. I love grinding my ears against razor blades of shallow fossilized iguana shit !!
make me happy !
:)