Best possible collection for my R36S almost complete

So...

I have the following platforms for my R36S all working and wonderful:

- Arcade (FBNeo and Mame)
- Atari 2600
- Atari 7800
- Atari Lynx
- Game Gear
- Game Boy
- Game Boy Color
- Game Boy Advance
- Megadrive/Genesis
- Master System
- Nintendo 64
- Nintendo DS
- Nintendo (NES)
- PC Engine/Turbografx
- Pico8
- PSP/PSPminis
- Playstation
- Scummvm (DOS/CD point-and-clicks)
- Super Nintendo
- Tic-80

I've messed with Portmaster and I have a ton of fan translations, homebrews and romhacks.
I don't love the platforms that have you pull up a virtual keyboard so I've left those off. Some platforms (like Atari Jaguar) run like crap no matter what you do.

Question - is there anything that you guys can see here that I've possibly missed that is an absolutely must with the R36S? Anything you guys have experienced that your R36S has made worth every single second? Would love to know and experience even more.