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Great joke, don't worry about people not getting it, it was such an easy joke I saw it coming. The fact that you thought of it though is the brilliant part, the animation didn't need to be any longer, you didn't need "Get it" at the end, just the animation of the sprite encompassing himself. That again, I saw coming, but it was so brilliant that I watched it twice.
It's like watching a Stand Up Comedian pick out a bit of observational humour that we know is there, but never see the funny angle of it.
So, in summary, great joke! Look forward to seeing more!