I think that it could be possible with Scratch. The best I can do is to fire a dot that stamps itself, followed shortly by a dot that is the same color as the background. The only problem is that if I don't make a background with four, five, or even six colors, I can't erase and make it look good. Even then, i would need it to be only three pixels wide (at most.) Has anyone had luck with this sort of thing?
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