Anniversary Issue was #74 of Series 1. The game was larger than normal and featured the return of many elements from earlier in the series.
The cover had lights drawn around the edges, To point out the issue’s importance. According to Chris, (though he's not certain), the game may have had 70 screens.
Story
According to Chris, the story for this game involved Xaq trying to stop an assassination attempt against John F Kennedy, the current President of the United States. (But the game included no details of the actual assassination, nor of conspiracy theories about it).