I was a Sonic addict in my childhood, playing Sega pretty much every day, hours at a time. I always thought Sonic games had great background tunes, but only yesterday did I read that Michael Jackson himself was involved in the production of music for Sonic 3. Due to some contractual complications he wasn't mentioned in the credits however, bringing mystery around the specifics of the collaboration.
There are some interesting similarities in some of Jackson's songs and the background tunes of Sonic 3. Here's a sample of music for a level called "Ice cap zone", one of the great tunes. And here's a bit from Michael's "Smooth Criminal" (Moonwalker version). Notice anything?
Here's a sound effect used in the tune for "Carnival night zone" that is pretty much like the one used here in Jackson's song "Jam".
Coincidence? You be the judge.