If you're an old gamer & can remember as far back as the 1970s, then you'll remember Space Invaders launching onto the arcade gaming scene in 1978. It went onto become a global phenomenon & was one of the forerunners of modern video gaming. Enjoy your morning brew eye opener & get ready to face the alien forces of the day by sipping from this Space Invaders Colour Changing mug. Perfect for gamers, young & old, the mug features a "screenshot" of the ground-breaking game. The aim of the game was to destroy the invading aliens & this mug works more or less the same way! Simply fill the mug with a hot beverage to see the game come alive! As the liquid cools & you drink your drink the aliens start to disappear & when the mug is empty, well, it's simply GAME OVER! The mug measures 9.5 x 8 x 8cm which is just the right size for your morning cuppa. However would advise that you hand wash the mug rather than place it into the dishwasher or re-heat in the microwave, otherwise the colour changing effect will be damaged.