The Hobbit, which released back in 2003 for the PC, GBA, GCN, PS2, & Xbox. I've never had any personal experience, but I've heard many times that it shares some similarities with Zelda games. It's certainly good for fans of the book, though the reviews I've seen seem mixed. Some people like it, some really don't. On the bright side, it's not an expensive game to pick up.
Also, has he played the Master Quest version of Ocarina of Time for the GameCube?