Mario Kart 8's twisted tracks and gravity-defying racing make it the best game in the series to date, but it might end up being remembered for something different: Luigi's death stare. The viral sensation has become such a big deal that Nintendo has even started incorporating it into its own marketing. A new Japanese ad for the Wii U racer features a series of slow motion glimpses at racers like Donkey Kong and Rosalina, but the highlight is easily Luigi's icy glare. If only he were driving a Mercedes.