If you plan on using tools to modify the game (like adding custom tracks), almost every modern patching tool expects a .z64 file. Using other formats often results in "checksum" errors or broken patches. Summary Verdict
In the (U) version, you hear Charles Martinet's classic "Welcome to Mario Kart!" on the title screen. In the Japanese (J) version, you hear a group of children shouting "Mario Kart!" and different menu narration. mario kart 64 u z64 better
The debate over which ROM is "better" often confuses two entirely different things: the region of the game (U for USA) and the file format of the ROM (.z64 vs .v64). If you plan on using tools to modify
The in a filename stands for the North American (USA) version of the game. For most players, this is considered the "standard" version for a few key reasons: In the Japanese (J) version, you hear a
If you want the most stable, "correct," and easy-to-use version of the game, look for: