It sounds like you’re looking for a review or overview of the concept of “all 3DS ROMs” — likely referring to the complete library of Nintendo 3DS game ROMs (read-only memory files) available through piracy or archival sites.
To use .CIA files on your handheld, your system must have Custom Firmware installed . all 3ds roms
The legality of 3DS ROMs is a complex and debated topic. While downloading ROMs of games you own can be considered legal in some countries, downloading ROMs of games you don't own can be considered copyright infringement. Additionally, the distribution of ROMs without the permission of the copyright holder is also illegal. It sounds like you’re looking for a review
