Famicom carts for World of Warcraft: The Burning Crusade, King of Fighters Collection: The Orochi Saga, Zelda 3: The Tri-Force of the Gods, and Final Fantasy 7: Advent Children. In case it’s not immediately obvious, these are unauthorized Famicom games from China!
Collector Trenton_net is selling a bunch of these carts — including Famicom versions of Chrono Trigger, Golden Sun, and EverQuest — for $15 each (with box/manual).
So, how do these modern games play when they’re adapted for an 8-bit system? Well, KOF Collection is an RPG with turn-based combat, Advent Children looks a lot like Final Fantasy V, and The Burning Crusade ditches its online and multiplayer capabilities in favor of a Phantasy Star setup:
And this is what Zelda 3 looks like (the music isn’t bad!):
See also: Pirated Famicom Disk edition of Tetris