An attempt at a world record speedrun in Grand Theft Auto San Andreas went off the rails when runner LelReset accidentally triggered a cheatcode during his attempt.
Attempting to break his own world record for a GTA San Andreas any% run, LelReset instead threw his pace off by triggering the OHDUDE cheat code which summons a hunter helicopter. The cheat was possibly triggered by an accidental WASD input during his run and you can hear LelReset's frustration when the helicopter descends upon him.
The main problem of course is that in speerunning it's generally a rule that cheat codes aren't allowed. If used a run could be discounted from consideration. It didn't matter anyways as Eurogamer reports that in LelReset's attempt to salvage the run he glitched into a boat, making the speedrun beyond completion.
It's funny to think about cheat codes in this day and age considering not many games implement them anymore. The fact that it was triggered by a series of accidental button presses makes it even more a product of its age than anything else. Alas, as if summoned by divine providence (and mistaken fingers), the helicopter deemed LelReset's run moot. Maybe next time.