Ported by me. From a R4/M3 Skin from here http://www.ndsthemes.com/themes/details/4f2045e873 . Originally made by RA. I had to improvise quite a bit. Have Fun.
You can get older ones even like the pi 3,4 for cheap, but they don't play gamecube, Wii etc very well. Be warned they use a Linux os, which you need to load onto a micro SD card yourself. You can find pre built images like "retro-pie" online free tho which makes it easy to setup.