Several Mario Kart-related items appear in the Super Smash Bros. series, with Super Smash Bros. Brawl in particular featuring a Mario Circuit stage based on Figure-8 Circuit from Mario Kart DS, Super Smash Bros. for Nintendo 3DS featuring a Rainbow Road stage based on its appearance in Mario Kart 7, and Super Smash Bros. for Wii U featuring a Mario Circuit stage based on its appearance in Mario Kart 8, along with the returning Mario Circuit stage from Brawl.
Two animated tie-ins for Final Fantasy XV were announced at the Uncovered Final Fantasy XV fan and press event, forming part of a larger multimedia project dubbed the Final Fantasy XV Universe. Brotherhood: Final Fantasy XV is a series of five 10-to-20-minute-long episodes developed by A-1 Pictures and Square Enix detailing the backstories of the main cast. Kingsglaive: Final Fantasy XV, a CGI movie set for release prior to the game in Summer 2016, is set during the game's opening and follows new and secondary characters.
At one point, there was also a game in the series planned for the Virtual Boy in 1995. Tentatively entitled VB Mario Kart, it was likely to be the first sequel to Super Mario Kart. The game was canceled due to the Virtual Boy's failure, and was never reported in the media until revealed in the August 2000 issue of German gaming magazine The Big N, along with other shelved projects for that system. Even though the GBA already had its own official Mario Kart game in Super Circuit, a tech demo called Mario Kart XXL was made for that system by Manfred Trenz of the company "Denaris Entertainment Software".
According to the in-game backstories, the world of Hyrule was created by the three golden goddesses: Din, Farore, and Nayru. Before departing, the goddesses left a sacred artifact called the Triforce, which could grant powers to the user. It physically manifests itself as three golden triangles in which each embodies one of the goddesses' virtues: Power, Courage, and Wisdom. However, because the Triforce has no will of its own and it could not judge between good and evil, it would grant any wish indiscriminately. Because of this, it was placed within an alternate world called the "Sacred Realm" or the "Golden Land" until one worthy of its power and has balanced virtues of Power, Wisdom, and Courage in their heart could obtain it, in its entirety. If a person is not of a balanced heart, the triforce part that the user mostly believes in will stay with that person and the remainder will seek out others. In order to master and control the triforce as a whole, the user must get the other parts found in other individuals and bring them together to reunite them. The Sacred Realm can itself be affected by the heart of those who enters it: those who are pure will make it a paradise, while those who are evil will transform it into a dark realm.