Dr. Luigi

Dr. Luigi, known in Japan as Dr. Luigi & Bacteria Eradication, is a 2013 puzzle video game developed by Arika and Nintendo SPD and published by Nintendo as a digital title for the Wii U via the Nintendo eShop. The sixth installment in the Dr. Mario series, the game was created as a part of the Year of Luigi celebration; which commemorated the thirtieth anniversary of the character Luigi.

Like its predecessors, Dr. Luigi's gameplay revolves around tile-matching pill capsules with their associated virus to clear them from the playing field. The primary goal of the game is to eliminate every virus on the field to score points and avoid overflow of pills. The game offers four modes: "Operation L", which utilizes L-shaped pills; "Virus Buster", using the Wii U GamePad and touchscreen; "Retro Remedy" with standard Dr. Mario gameplay; and local and online multiplayer options, online utilizing the defunct Nintendo Network Service.

Dr. Luigi's release marked the Year of Luigi celebration's continuation into the next calendar year of 2014; from its original start in 2013. It was announced via a Nintendo Direct in December, and released on December 31, 2013, in North America and January 15, 2014, worldwide. Critical reception was average, with mixed opinions regarding its various modes and criticism for its lack of innovation. The game was followed by Dr. Mario: Miracle Cure in 2015, which includes some of Dr. Luigi's gameplay elements. On March 27, 2023, The Wii U eShop was shut down, making it impossible to purchase and download the game.