Wham!‘s ‘Last Christmas’ at a recent match, potentially ruining the game ‘Whamaggedon’ for thousands.In the cult game ‘Whamaggedon’, players try and avoid the Wham! classic until Christmas Eve, and are knocked out of the game when they hear it.In Northampton Town’s game against Portsmouth on December 2, DJ Matt Facer made the unfortunate decision to spin the track. “I never knew people took it so seriously,” he said.