Chicago commuters were treated to a slightly unusual start to the working week as they were given the chance to take a ride on the Luigi Express.

To promote the "Year of Luigi", Nintendo of America has transformed one of Chicago's L-Trains into a Luigi train, suitably decked out in promotional artwork for the retail release of Luigi's upcoming eponymous game, New Super Luigi U. The interior and exterior both became awash in green, which certainly stood out against the Chicago backdrop.

Travelers on the Brown, sorry... Green Line got the chance to meet the mustachioed hero himself and those passing through the Clark/Lake Station were given the opportunity to get a hands on trial of the game at specially installed booths.

Mario has already been forced into the shadow of his leaner, greener brother this year with a number of Luigi-centric releases such as Luigi's Mansion: Dark Moon and Mario and Luigi: Dream Team, both for the 3DS. New Super Luigi U is available on the Wii U eShop now with a retail version releasing on 25fh August.

And if you missed the chance to travel green, worry not as the train will be kitted out in its Luigi theme until 8th September.

All images courtesy of Nintendo of America.