In the video game Portal, players had access to a gun which could literally punch holes in space.
So if Portal was real, what would people use it for?
Pranks, obviously.
Film maker Jason Craft used CGI to create his amazingly well-crafted vision of what would happen if a Portal gun was let loose in a regular home.
"I tried to match the game as close as possible," Craft says of his clip.
"This was the most challenging project I have ever undertaken, consisting of 3D tracking, seamless camera cuts and 3D camera projection."
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"This started out as an experiment since I didn't think I could even pull it off," he said.
"If I knew it would've turned out as good as it did I would've put more of a story behind it."