The most direct way to "download" and play the game today is through official Nintendo services:
: Prior to store closures, the version released in Europe on the Wii U was actually the NTSC-U (North American) version with slight modifications to remove original N64 lag adjustments. Understanding Version 1.1 Differences Download Mario Kart 64 (V1.1)
: You can play the original game by subscribing to this service on the Official Nintendo Site . It is included as part of the Nintendo 64 library. The most direct way to "download" and play
: There are at least five known versions: two Japanese (1.0 and 1.1), one North American (NTSC 1.0), and two European (PAL 1.0 and 1.1). one North American (NTSC 1.0)