/vr/ - Retro Games

>>3631521
There's an attachment for the regular 3DS, the Circle Pad Pro, which attaches to the bottom of the handheld and gives you a complete circlepad to mimic the standard one, along with two extra shoulder buttons. It also kind of rounds out the corners of the thing so it's less square and edgy to hold.

The thing only really is supported by a handful of games on the 3DS itself (as well as some limited backwards compatibility with titles for the New 3DS), but I imagine you could use it for your own purposes.