All I remember is a lot of slaves underground dig for pink pearls/diamonds. They worship a living God with a Bulls head... turns out that is a man with the Bull's helmet just getting the slaves to dig more or death for certain.

A couple try to run out , but the girl gets killed. The man gets picked up by a space pirate/smuggler who smuggles the pink diamonds.

At the end the man goes back and kills the villain with the bull's helmet and frees the slaves.

I remember enjoying it as a kid, wish someone could help me find the name of the

Try,.

StarChaser:
The Legend of Orin (85)

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That's the one. Thanks a lot.