Part 29: Level 23
Featured music - "Speed" from Gradius Gaiden by Konami and "Mystery Metal" from the Descent Redbook Soundtrack.
I wish I had more light.
This is a mine that can get very dark if you are not careful about where you are shooting. Shooting out the lights means you will burn a lot of energy on flares and your headlight and there isn't an energy center anywhere in the mine to replenish it. Unless you manage to waste an entire game's worth of ammunition or play this level fresh or didn't make it out of the previous mine before the reactor exploded, it won't be too hard to deal with the darkness. All of the robots drop some kind of weapon for you to use and there are plenty of vulcan cannon rounds and a gauss cannon to relieve you of your dependency of energy.
There is a bit of a "puzzle" for getting to the reactor in this mine, but like level 21 in Descent 1, it's moving into a series of compartments to get the reactor's door to open up its welcoming ceremony of fire and explosions.