Cool visual style! Reminded me of the Outcast and other old games. Also, very impressive level generation! Although I must admit that the first time I played the game, I was stuck in the very first room, due to enemies being in the next room and thus doors being shut. Or at least I think that this was the reason behind it.
I liked the core concept of memories as architecture, I think you can pull of a lot of interesting stuff from the memory as labyrynth metaphor.
Great job!