1999
They did a brief review of a gaming accessory called "GameShortz" in their article where they reviewed various gaming accessories. The GameShortz appeared to be just a pair of boxer shorts with PlayStation controllers attached to them. The review didn't explain what the GameShortz did and seemed to be more poking fun at the idea of them. A big clue that it was an April Fools' joke was the price tag of $41.99 (4/1/99 or April 1, 1999).
Read more about this topic: EGM April Fools' Jokes