Nintendo announced earlier this year that it would be releasing DLC for New Super Mario Bros. U in the form of New Super Luigi U. The add-on pack completely transforms every level from the original game into a hardcore platforming challenge that will test even the most dedicated Mario players.
To give players a heads up on what they can expect, Nintendo UK released a short video detailing the differences between the original game and the new Luigi-fied version.
Well then, that looks incredibly difficult, but it also looks to be a lot of fun. I'm not sure if four player co-op would actually be that wise in these more demanding stages, but hey, it's your funeral, buddy.
New Super Luigi U will be out on Thursday as DLC for New Super Mario Bros. U. It will be available as a standalone retail game later on August 25. The trailer indicates that the retail package will only be available in 2013 so you might want to grab it quick.