New Super Luigi U is a downloadable package for New Super Mario Bros. U. The game was announced at a Nintendo Direct in February and is due out as DLC on June 20th in North America and Europe, costing $19.99 to buy digitally. In addition, the game will get a retail version for the price of $29.99, but the copy can't be yours until roughly two months after the initial release.
"Celebrate the Year of Luigi as the green-hatted hero takes center stage in his first starring role in a platform adventure. Players can show off their skills as Luigi, complete with his trademark high jump and unique slide, as they experience more than 80 new courses set in the world of New Super Mario Bros. U."
Nintendo is using E3 to give the game one final push. They have released a new E3 trailer and a slew of new screens and artwork.
Take a look at all of that stuff above and below!