Does anyone play (has played) "Mines of Mars"...

Idk if it's glitching, or not. I've played a bunch of times over the years. Then stopped playing it for several years.

I think I finished it twice with completing the last dugeon all the waaay down years back.
But it turns out from reading replies to someone's how-to, and tips site I never quite totally finished! A poster said if you mine all the rocks something cool happens. I've never done that. Never thought to do it.

I'm irl a (not recently) occasional rock hound - so mining even digital fake gems, and precious metals gives me a bit of a thrill. 😄😄😄 ⚒️ 💎

My problem.
I'm trying to finish the second to last dungeon. I can't seem to kill the big monster this time. 😑

I have all the weapons - things you'd think would kill it - sniper, both rocket launchers. Had the miner in above in front, from behind, even shooting upwards from on the floor; and nothing. Just "blast" dust against it's body. The only thing I don't have is the alien weapon you might get in the trading pit.

I really want to finish the final two so I can see if mining all the rocks will activate what ever cool thing that might happen.

They originally planned to do a Mines of Mars 2 - but it seems it never happened. I think there was a preview vid, but that's all. Think I read you could acess it after you totally finished the game.

But this poster was not clear that that was the cool surprise.

Any thoughts? 🙂
Tia.