Basically anything that gpsp can run, this (should) run. So maybe, maybe not. Testing is definitely appreciated so that I can find issues with my porting and fix those to get back to gpsp's true compatability.
Also, I just pushed a new 3dsx. This one reverts the previous method I used to rotate the screen and instead writes to a GBA framebuffer, and then uses this framebuffer and translates it over to the screen via software. In the future I'll probably map this buffer to a texture and render it in hardware instead. However, this fixes a number of graphics-related crashes, which is good. I also fixed input, so you'll be able to progress a lot more now in games and further testing.