Why you should always wear a helmet when playing with a Portal gun

Portal guns are all fun and games, until someone reaches terminal velocity and gets hurt. Play safe kids

Words cannot describe the awesomeness of this Portal gun video. The effects are superb and the lesson is clear. Portal guns aren't toys, so play smart and stay safe.

If the video below has whet your appetite then check out our five of the best video game prop replicas.

[via Vimeo]

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