8 Video Game Bloopers The Developers LEFT IN

8. Destroy All Humans! (2005)

A game that doesn't take itself too seriously is the perfect breeding ground for hilarious outtakes, and in the case of 2005's sci-fi shooter spoof, Destroy All Humans!, the leftover recordings of the voice actors' antics were simply too priceless to toss aside.

While not actually within the game's narrative, this blooper reel is included in the extras menu and features almost four minutes of unused dialogue clips over a slideshow of funny pre-release images.

While looking at the unfortunate glitchy scenes from the game's development, it's endlessly entertaining hearing the voice actors repeatedly botch their delivery, trip over their words or simply ditch the script to go off on their own whimsical tangents.

What really makes this reel, though, are the handful of impressions these actors throw out, vamping hilariously as everyone from Rocky Balboa to Smithers and Mr. Burns. Bet you didn't expect that when you clicked on the video - but would the game be quite the same if the developers had left it out?