How to paint on a pixelated image
Hello,
I'm editing a screenshot from The Binding of Isaac, which has pixelated graphics, and I want to paint part of the image. The issue I'm running into is that when I paint, the brush stroke appears smooth:

Is there any way to "pixelate" the paintbrush so it paints more like this:

Normally I would resize the image so the "pixels" are the size of actual pixels, but there's a little bit of noise in the image that would be lost with that method.
Any help would be appreciated!
(I'm using Photoshop 23.5.1)
