The Nokia 3310 display has a resolution of 84 * 48 px, but they are not square pixels.
Is it allowed to use a custom shader to use non-square pixels to match the real dimensions of a Nokia 3310?
In this example, one pixel is 3 by 4.
Compare that to using square pixels: 
is it 3by4 ratio exactly? iv been writing my engine and went with 7by9 pixel ratio that seems approximately alright to me.
also would it be alright to do ghosting and low fps?
if you wanna check out the html5 engine
Anything you want to do to try and make your game more accurate to the original Nokia 3310 would be allowed!
Interesting! I did not know this. This would be allowed as you're just trying to make it as accurate as possible. I would make sure you put a disclaimer on your game page explaining what you did so people don't think you're disobeying the resolution rules.
