It's funny that you mention that, because MS told me earlier that improvements to the lighting effects are planned. He also mentioned dissatisfaction with the random number results a few hours ago. Great minds think alike, I suppose. I like the idea of having a few chests around because there are plenty of places to hide them.
We've played Mazes of Fate. As far as we know, it's the only first person dungeon crawler on the GBA and we wanted to provide another entry in this underrepresented genre.