Hi! :)
The game requires a horizontal resolution of at least 320 pixels. The NES has a resolution of 256 pixels.
I'm still thinking about how to port it to PCs/consoles that have a lower resolution without too much hassle. Scrolling is an option and probably the way to go. Once i'm happy with my solution, i'll definitely try my best to port it to the NES, SNES and Mastersystem! :)