The Year of Luigi
Having seen their other super plumber brother go neglected for a good while, Nintendo decided to combat this by declaring 2013 the Year of Luigi, it being the 30th anniversary of his first appearance in Mario Bros.. The celebration carried on for exactly 365 days — a full year, in other words — meaning the celebration began on March 19, 2013, and concluded on March 18, 2014.

During this celebration, three new Luigi-centric games were released, and in Japan a special 3DS XL was released with one of them coming pre-installed. This also coincides with two special Year of Luigi Miiverse communities opening for 2013.

The games released for the celebration include:

Games released that contain nods to the celebration include:

  • Super Smash Bros. for Nintendo 3DS and Wii U: He's usually a Secret Character in the Smash series, but he was made into an initial character due to this anniversary, with his trophy even mentioning the anniversary itself. Luigi's episode for Palutena's Guidance also mentions the anniversary.
  • StreetPass Mii Plaza: The Miis given out during E3 2013 via Spotpass wore Luigi hats.
  • Animal Crossing New Leaf: Nintendo of America's dream town has Luigi themed items, and even a Luigi photo stand-in.
  • Mario Bros.: Was released on Wii U's Virtual Console. Luigi made his first appearance in Mario Bros..
  • Super Mario 3D World: The game, like New Super Luigi U, has 8-bit Luigis hidden in some courses. By completing the game, the player can play a remake of Mario Bros. named Luigi Bros., which has Luigi as the first player. If the player has a save file for New Super Luigi U, the game is unlocked at the start.
  • NES Remix: Placed Luigi in Donkey Kong, a game that existed before he did.
  • NES Remix 2: Contains a Mini-Game called "Super Luigi Bros.", a Game Mod of Super Mario Bros. that flips the levels horizontally, and replaces Mario with Luigi, who has his physics from Super Mario Bros.: The Lost Levels. Also, 8-bit Luigis can occasionally be seen briefly in the regular game modes.
  • Mario & Luigi: Paper Jam: Although a post-Year of Luigi game, Starlow mentions the year by name at one point.