One of our favorite things about Nintendo Wii U’s “Mario Kart 8” is the Luigi death stare. The seemingly nice-guy plumber recently turned angry driver in the popular racer game, which launched May 30 and has already sold more than 2 million copies.

During the 2014 Anime Expo at the Los Angeles Convention Center in California last weekend, YouTube user D Piddy created a real-life version of Luigi’s death stare, proving that bad guys sometimes finish first.

Check out D Piddy’s video below.

Last month, market research company NPD Group reported that “Mario Kart 8” was the third-best-selling game software in May. It also became the Wii U’s fastest-selling game with more than 1.2 million units sold worldwide within less than two weeks of its launch. The game’s launch also boosted sales of the Wii U by more than 90 percent over May 2013.

On June 2, U.K. market research and media sale monitoring company GFK Chart-Track said the game had boosted Wii U sales by 666 percent, with 82 percent of that coming from the “Mario Kart 8” bundle.

Kyoto, Japan-based Nintendo Co. Ltd. (TYO:7974) also confirmed “Mario Kart 8” had reached sales of more than 2 million copies in just under a month after launch.

The company made the announcement during its 74th annual general meeting of shareholders on June 26.

According to VGChartz, Nintendo was selling around 29,000 Wii U consoles per week before “Mario Kart 8” reached buyers. After May 30, more than 130,000 Wii U consoles were sold.

Are you playing "Mario Kart 8"? What do you think of Luigi's death stare? Leave a comment below.