ジンギスカン is Yukihiro Niiyama's second single, released in 2006, and it is a love letter to Hokkaido's most famous grilled dish, jingisukan (lamb barbecue). Despite its title, the song has no musical or lyrical connection to the 1979 Europop hit "Dschinghis Khan" by the German group of the same name; its title instead points to the Japanese regional specialty named after the Mongol ruler. The track became a grassroots phenomenon in Hokkaido, receiving heavy airplay on STV Radio and eventually becoming so ubiquitous that it could be heard playing in supermarket meat sections across the prefecture. The song made its maimai debut on November 6, 2018, as part of the MiLK PLUS update, classified under POPS & ANIME. Its music video was filmed specifically for inclusion in the game, rather than being repurposed from an existing promotional clip. A UTAGE (宴) bonus chart arrived on December 25, 2018, designed by はっぴー as a deliberate slide-start-tap practice exercise. However, the song was removed from the maimai arcade lineup on July 11, 2019, making it a relatively short-lived addition. Its Expert chart was designed by サファ太 (Safata), and its Master chart by はっぴー (Happy). In Asian English versions of maimai, the track is listed as "Genghis Khan" with the artist credit reading "Niiyama Yukihiro Feat. GREAT G and surprise."