Betelgeuse Iron mines is made by Filli.

STORY : After you've defeated all enemies in this solar system, you were sent
to betelgeuse iron mines to clean it up. The same type of robots is used, but
this time it won't be that easy...

Approx build time : 30 hours ( the first level takes time )
Number of enemies : 102
Number of cubes   : 387
Keys used         : All
Weapons available : All except spread cannon
Missiles          : All except Mega
Multiplayer mode  : N/A
Deathmatch mode   : N/A
Highscore so far  : 104100 ( Trainee )
Editor used       : DEVIL

Note : If you don't find the "exit" door, don't worry. This door is placed
behind the blue door. And the blue key is placed behind a door that will be
opened when you've destroyed the reactor.
 Remember to hurry up - there's not time to sneak around in the tunnels when
you've destroyed the reactor. I had approx. 7 seconds left when I finished the
level. The next level in this great episode is available in February from 
http://www.cd.chalmers.se/~filli/3dgames.html
Just click on "download all of my descent levels" and you've got a fresh update
of the ( so far ) complete episode.
 Any comments @ all can be mailed to filli@cd.chalmers.se
 If you want to play deathmatch and/or multiplayer, just mail me and I'll fix
it.