A small subset of the community enjoys “modded” versions that add custom tracks or cheat codes. Some bootleggers market these as “enhanced” versions, disguising them as “FAKE” to avoid outright copyright infringement accusations while still enticing curious players.
In scene parlance, if a release is found to be faulty, it is "nuked." A "FAKE" tag is a form of soft-nuking. It tells the community that while the game might be playable, it isn't an 1:1 "clean" dump of the original disc. Mario.Kart.8.USA.WiiU-FAKE
Later, the name resurfaced as a deliberate, joking filename for fan-made mods, unofficial ROM hacks, or even empty placeholder files shared as a prank. In some archival forums, Mario.Kart.8.USA.WiiU-FAKE is still referenced as shorthand for "don't believe every labeled release." A small subset of the community enjoys “modded”