List of sponsors debuting in Mario Kart 64

This a list of the sponsors that have only appeared in Mario Kart 64. For sponsors that have appeared in the other Mario Kart games, see the list of recurring sponsors in the Mario Kart series.

Koopa Air
Koopa Air is a sponsor that appears in Mario Kart 64. Presumably, it is an airline with some relation to Koopas. The logo consists of company name written in an italicised all-capitals font with a purple and blue gradient on a white background. In Japan, the logo used a different color scheme with yellow text and a dark blue background. This resembled the logo, which was a major  advertiser at the time, and was likely removed in the western versions to prevent a lawsuit from the company. It is advertised by means of trackside banners and signs.