Turns out one of the best April Fools 2010 jokes hasn’t been revealed until now. GameStation, a United Kingdom video game store chain decided to have a little fun with online customers who don’t read the terms and conditions before placing orders. On April 1, 2010, an additional clause was added to the standard legal spiel that gave the store custody of customers’ souls.

Here’s the exact clause GameStation put into the terms and conditions…

With the holiday season upon us, residents of Meadowhall, Sheffield, with friends and family who enjoy the occasional match of Team Fortress 2 or 6-hour World of Warcraft marathon — that is to say, the gaming-inclined — will be pleased to hear that Gamestation is about to open a new store in their vicinity.

The store hallmark is scheduled to open to to the public at 9 a.m. on Friday (November 28, 2008), with a special launch weekend set to follow. Local radio station Hallam FM will be on hand to offer prizes to lucky shoppers taking part in the Blender drinking contest, which will feature cocktails aplenty.

The world’s most famous plumber and blue hedgehog (as in Mario and Sonic) will also be joining the celebrations on launch day, offering the store’s first fifty customer a…