Works fine on my DS Lite, but won't boot on OpenEmu.
I absolutely LOVED the graphics sound and music, but the touchscreen controls were very twitchy (it could be that my DS is quite banged up and I haven't booted it in a while, TBH). The character also walks a little too slow for my tastes, but I understand that it's part of the creepyness factor.
I also noticed some graphics corruption when moving between rooms. It looks like your engine is very similar to mine and I experienced a similar issue. I end up using a transition animation in the spirit of Resident Evil