iPod Classic click wheel games. Specifically Mini Golf. I've also been working on an emulator for the others and it can now boot all of the 20 decrypted games released ~20 years ago and play most of them. There's a Sims Bowling, Sims Pool, and Lost game in there which is cool from a preservation standpoint. Less cool are the SAT Prep 2008 games which have actually been surprisingly annoying to emulate due to the way the text uses blend modes.

I plan on releasing all of this at one point. It's crazy it hasn't been done in 20 years!