Ok, I have many fond memories of this game and I've always wanted to make a speedrun, so here is my first effort:
http://dehacked.2y.net/microstorage.php/info/44/Crystal_mines.fcm
(thanks for the hosting, deHacked)
The ROM I used was "Crystal_mines.nes" it was the only one I could find that didn't stuck at the title screen.
As you can see, you can skip levels by 5s up to level 81. This is my progress so far, completeing 81 and 82.
The objective of this game is to get the required number of crystals (displayed on the top) to make the exit appear, and then get in the exit. There's various enemies and rocks with different attributes.
The glowing rocks are radioactive and if touch them you die soon afterwards without the coat hanger item. The purple stuff is lava and you need the equals sign item to move through it (or mud, the orange stuff). The purple things with numbers are bombs which kill stuff, blow up rocks, or turn dried mud into crystals. Mud can be dried by shooting it. Exploding bombs, touching enemies, being crushed, being shot (by yourself) or running out of time will kill you.
I think I do these two levels as fast as possible. I'm quite scared about later levels though, as they get very complicated and would require a lot of luck manipulation. If there is interest I'll try to finish it, but if not I'll drop it.
