One of my favorite feature of the jailbroken 3DS is the NSUI app [0]. The official Virtual Console releases made it possible to play certain old Nintendo games on the 3DS. But turns out the same wrapper (it’a not an emulator so much better performance and compability is straight given) can be used for _any_ game as long as the system is supported. So basically the 3DS became the perfect handheld to play old NES/SNES/GB/GBC/GBA games pixel perfect.
One other thing I only realized about the 3DS a couple of years ago: the bigger microSD card you use it becomes slower. Afaik the whole console scans the whole storage block level so after a certain point (64GB and above) it becomes plainfully slow. Especially if you play GBA injects > the 3DS quasi reboots itself in that mode so the console scans the storage again.
0, https://3ds.eiphax.tech/nsui
One other thing I only realized about the 3DS a couple of years ago: the bigger microSD card you use it becomes slower. Afaik the whole console scans the whole storage block level so after a certain point (64GB and above) it becomes plainfully slow. Especially if you play GBA injects > the 3DS quasi reboots itself in that mode so the console scans the storage again.