Mario Kart Insets is a series of video games developed by Nintendo. The series features characters from the Mario franchise, including Mario himself, racing against each other in go-karts on various tracks. The term 'Mario Kart Insets' refers to the MAPS that are used in the game. These MAPS are designed to provide players with an immersive experience, as they race against each other and navigate the various obstacles and shortcuts. The crossword solution for this term is MAPS, which is an acronym for the four letters that make up the word.