Next time try a Toon Shader. You need to swich to Cycles though.
LOOPS GIFS ARE SO GREAT THIS GIF IS AWESOME!
How do you turn anti aliasing off?
In the properties panel on the right side of blender under the "render" tab, (should be there by default) beneath the dimensions, there should be an anti-aliasing checkbox. just check it off and you'll get ya nice jagged edges.
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