I unfortunately lack the know-how and experience of programming an actual NDS game, but if anyone wants to make a demake, go ahead! I’ll provide assets.
ok! With the software I have now though l, don't know how to pull the X and Y value of the stylus. I would need to also figure out realistic physics like you have. The draw might not work, so that too. I would need to figure that stuff out first then I can get started!