2023年更新，应该是nds上最新的gbc模拟器，修复了一些问题，支持颜色校正（color correction）、GB相机和打印机等特性

github页面：

https://github.com/Lana-chan/GameYob

最新更新日志：

Changelog:

• Fix VRAM garbage displaying behind menu when playing with scaling mode on
• Fix GBC BIOS overwriting palettes in SGB mode
• Fix GBC palette writes (fixes black colors when playing with color correction)
• Fix SGB mode not using custom palettes

There's still some weirdness with palettes in games that have SGB enhancements. Feel free to open issues for individual games and I'll try to hunt them down.

Regarding settings: make sure you have a _nds folder created in the root of your SD card since GameYob is currently hardcoded to look for and save the settings file there. Saving can fail if the folder isn't present.