QWOP
The joke is that running, which is seemingly the only thing you have to do, is a needlessly complicated process that, like most gameified needlessly complicated processes, can be figured out through repetition and enough free time, which uncovers the REAL joke, which is that you're actually doing the initial sprint preceding a long jump. There's a limit to how much a comically unwieldy system can put you through before smothering its punchline, and "QWOP" hits that limit from the starting line. This has been exhibited at art shows; so have literal mounds of shit. Brief, but still too long.
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