(Sorry, I reposted this, because I get the feeling that by the original name people thought I was spamming!)
Anyone notice Duke Nukem Zero Hour for N64 has tons of Simpsons references? In the first level alone, there's a store called Erotic Cakes, there are posters about "Mr. Plough" and "Plough King" (sic), and there's a restaurant called Uncle Morris's Family Feedbag!