Anyone ever discover any codes?

[Iron Lizard]

Has anyone ever figured out any codes before? It has only happend once for when I hit the c button while Time Gal was paused and found myself on the next level.

[Rusty Venture]

I think I figured out how to morph into Smoke with Shang TSung in Mk3 on the Genesis. I looked at a cheat guide on GameFAQs and I didn't see it listed. Or moves for Shao Khan.

[Genesis Knight]

In my mislead youth I figured out a ton of special moves for the bonus characters in Batman Forever - even made a FAQ for it. Other than that...hmm...just a ton of Beyond Oasis tricks, tips, glitches. I was involved with a lot of discoveries for that game, such as unlocking the ranking algorithm - but other people did most of the work.