Graphics issues, bad quality.

On the game I'm making I've noticed that when I test it the graphics are of pretty average quality, even though it's simple pixel graphics. I don't know what settings might be causing this. I have tried making the images I import into the game 10x scaled up but even then there is still 'fuzzy edges' on the images. Thanks to anyone who helps.

In project settings > Sampling, change it from linear to point. That will prevent any anti aliasing. Hope this helps!