Great use of the theme. I tried to get just a little bit more at the end, but soon saw I wouldn't have enough time, so I turned in with about 5 seconds to spare. 340 was my score. I think some sort of searching music with tension could be helpful. It would help increase the need to rush and find as much as you can since the time is running out. I also think if you could figure out lighting, dark spots and light based vision could add a lot to the ambience and feel of your dungeon.